In my walks I would fain return to my senses. What business have I in the woods, if I am thinking of something out of the woods?
—Henry David Thoreau
Recently, I found myself wandering the forests of southeastern Tasmania. En route, I pulled the car over at Geeveston to inspect the Forest & Heritage Information Center. Constructed of wood, and filled with information about trees and their commercial uses, one of the myriad facts I picked up was this, "Forests managed for timber production remove more carbon out of the air over time than unmanaged forests locked up in reserves." Because this was written and distributed by people who view trees as things that need to be made into something else -- ie, wood chips, boats, two-by-fours, etc -- I read this with narrowed gaze.
On my return to America, hunched over stacks of dusty volumes, I came across the "Analytical Model of Carbon Storage in the Trees, Soils, and Wood Products of Managed Forests," by Roderick C. Dewar in the journal Tree Physiology.
The fact is, so-called managed forests do have a higher C02 intake than so-called unmanaged forests. Why? The fact is, while a forest is growing, it is a net sink for C02 while mature trees are essentially in equilibrium with the atmosphere.
What Dewar and other researchers seem to be saying, (which the Tasmanian foresters have deployed in a somewhat simplified and self-serving way) is that yes, young, growing trees will suck out more C02. However. It's a far more complex equation than young/managed vs old/unmanaged. Factors such as soil, tree species, what the trees are made into (ie, products with a short or long shelf life?) all play key parts in figuring out the C02 equation.
Facts, those pesky details, and how we twist them to our own ends.
It circles us back around to ideas of who runs the narration of life on Earth -- how proper science with all its tedious reports actually answers complex questions with complex responses. How other sorts with more commercial/exploitative interests maybe shouldn't be allowed to build "information and heritage" centres. I know that sounds incredibly bossy and Che Guevara-ish. But it's true. Leave the histories to those interested in the whole text, (from texere, to weave.)
In some places, Yosemite, for instance, it's good enough to simply be a giant tree. Your life is spared and nurtured. In some places it just isn't. Go figure that one out.
The Australian filmmaker and dancer Lisa Roberts (no relation) told me many of the trees felled in Tasmania become woodchips bound for Japan these days.
Sitting along the side of the road in Geeveston, while a huge logging truck whizzes by, shaking my car, I see the long, soft trunks stacked like -- wood. I imagine their life in these woods. I see them soon-to-be made into what -- packing materials? particle board?
I press my hand to the windshield glass as they roll northward towards the harbor in Hobart and their sea journey. Then I drive deeper into the woods.
7/27/2010
Tree-ish Rappinghood
What's a tree's worth? The other morning, slammed in traffic -- first vehicular then human -- en route to the Mariposa Grove of redwoods, I kept thinking of the Tom Tom Club's Wordy Rappinghood. It's a rat's race at a fast pace. Don't we go in search of trees to leave this stream?
What's a tree's worth? In Mariposa, French, Spanish, Japanese, here a language, there a language, heads tilted backwards, cameras held aloft, children standing next to unearthed root systems resembling a woodcut for Blake's lines. All a day's work for the redwoods.
What's a tree's worth? I walked 2.2 miles (or so they told me) shuffling dust with my children and a bunch of complete strangers. And while I usually find over-stuffed outdoorsy activities not to my liking -- give me solitude and a less scenic route any day -- I would fight the crowds again to stand among those trees.
My friend the poet Susan Gevirtz said we like big trees because they remind us of the passage of time. We can put our hands on their trunks and feel time.
Is this the reason we go to them?
Or do we like superlatives so? Largest trees on the planet -- almost. Oldest tree in this grove. Branches bigger than tree trunks in most of the world's forests.
From my notebook: Four trees called The Bachelor and Three Graces. While sneaking a closer look, a tractor trailing hauling open-air cars, wheezes by, a little bit of the Garden State Parkway right here in California. Passengers all wore headsets. Me: jealous. Hold deep, secret love of "audio tours" (don't tell) -- both because of whom they choose to read the script (always better when it's either someone who also performs Shakespeare or an inordinately sincere expert) and because it is so directional. When most things that get audio tour treatment (art, trees) are actually invitations to be wildly creative and free.
Facts on these trees -- shallow roots, only six feet beneath where I stand...down there, drinking...as I write this, drinking 1,000 gallons a day, these four trees so entwined there will be no separation for them -- if one falls, they all go down. The whole root system is said to cover half an acre.
The problem with tree facts? We get too much at one time. One or two ideas is enough. Enough. Stop reading the placards lining the route.
I like the Taoist idea of trees. How lucky they are to be content to stay in one place and grow.
After I write this, it is time to rejoin the stream, pressing, crying children in dusty strollers, crying children told sotto voce to shut up, squirrel loudly named Chubb by a teen-age boy feeding it crumbs, well-turned-out French hikers jutting lips and wiping brows saying d'accord, the whole place snapping, yapping, clapping.
What's a tree worth?
What's a tree's worth? In Mariposa, French, Spanish, Japanese, here a language, there a language, heads tilted backwards, cameras held aloft, children standing next to unearthed root systems resembling a woodcut for Blake's lines. All a day's work for the redwoods.
What's a tree's worth? I walked 2.2 miles (or so they told me) shuffling dust with my children and a bunch of complete strangers. And while I usually find over-stuffed outdoorsy activities not to my liking -- give me solitude and a less scenic route any day -- I would fight the crowds again to stand among those trees.
My friend the poet Susan Gevirtz said we like big trees because they remind us of the passage of time. We can put our hands on their trunks and feel time.
Is this the reason we go to them?
Or do we like superlatives so? Largest trees on the planet -- almost. Oldest tree in this grove. Branches bigger than tree trunks in most of the world's forests.
From my notebook: Four trees called The Bachelor and Three Graces. While sneaking a closer look, a tractor trailing hauling open-air cars, wheezes by, a little bit of the Garden State Parkway right here in California. Passengers all wore headsets. Me: jealous. Hold deep, secret love of "audio tours" (don't tell) -- both because of whom they choose to read the script (always better when it's either someone who also performs Shakespeare or an inordinately sincere expert) and because it is so directional. When most things that get audio tour treatment (art, trees) are actually invitations to be wildly creative and free.
Facts on these trees -- shallow roots, only six feet beneath where I stand...down there, drinking...as I write this, drinking 1,000 gallons a day, these four trees so entwined there will be no separation for them -- if one falls, they all go down. The whole root system is said to cover half an acre.
The problem with tree facts? We get too much at one time. One or two ideas is enough. Enough. Stop reading the placards lining the route.
I like the Taoist idea of trees. How lucky they are to be content to stay in one place and grow.
After I write this, it is time to rejoin the stream, pressing, crying children in dusty strollers, crying children told sotto voce to shut up, squirrel loudly named Chubb by a teen-age boy feeding it crumbs, well-turned-out French hikers jutting lips and wiping brows saying d'accord, the whole place snapping, yapping, clapping.
What's a tree worth?
7/23/2010
Tasmanian Pademelons
We're just back from Tasmania -- where we attended and presented at the Antarctic Visions Conference at the University of Tasmania, Hobart.
How did the talk go? I believe it is always ill-advised to begin a new slide deck at 3:30 am the day of -- because one suddenly has a "great new idea."
And yet this was the predicament I sucked myself into, suddenly obsessed with capturing larger ideas of how we understand and talk about place. And the name I gave it was Lyrical Geomorphology. (Expect to see more of these notions here, as I tease them out for my book.)
The rest of the panel "killed" (modish high-praise lingo vectored into my brain via my 13-year-old daughter) that day. Bill Fox, Terra Antarctica: Looking Into the Emptiest Continent, gave a rousing discussion of his own path to Antarctica -- how understanding The Ice as Place began with conversations -- with Barry Lopez and Stephen Pyne. Gretchen Legler, author of On Ice , detailed her ever-expanding list of women's writing on The Ice.
I quoted my good friend David Campbell's brilliant Antarctic book The Crystal Desert , showed slides from my exploding collection of Antarctic images, and chatted about how "personal" stories offer us writers a sort of wild creativity and freedom.
When the conference ended we drove south towards Recherche Bay, to a solar-powered shack in the forests.
Unexpected, dominant piece of each day: In the land of nocturnal animals, road kill takes on stunning proportions.
Part of our morning ritual entailed pausing to shovel small, unfamiliar animals off the road. It felt like the right thing to do.
While doing so one day, Ed said to me, "What the hell is this one?" The grey-brown back and reddish belly, the muscular forearms, stocky, short legs.
Only yesterday as I culled photos from the trip did I sit down to add name to image. I came again to this guy and found it to be a male pademelon -- and Aboriginal name, sometimes called the rufous wallaby.
Looking at its living rellies online, I considered how islands like Tas tell a specific wild story of adaptation, how this adaptation is often portrayed as "exotic" and how site-specific plants and animals hold us in their thrall.
Thanks for that inspiration, pademelons. More about native plants and animals and how their life The Presidio in our next post.
How did the talk go? I believe it is always ill-advised to begin a new slide deck at 3:30 am the day of -- because one suddenly has a "great new idea."
And yet this was the predicament I sucked myself into, suddenly obsessed with capturing larger ideas of how we understand and talk about place. And the name I gave it was Lyrical Geomorphology. (Expect to see more of these notions here, as I tease them out for my book.)
The rest of the panel "killed" (modish high-praise lingo vectored into my brain via my 13-year-old daughter) that day. Bill Fox, Terra Antarctica: Looking Into the Emptiest Continent, gave a rousing discussion of his own path to Antarctica -- how understanding The Ice as Place began with conversations -- with Barry Lopez and Stephen Pyne. Gretchen Legler, author of On Ice , detailed her ever-expanding list of women's writing on The Ice.
I quoted my good friend David Campbell's brilliant Antarctic book The Crystal Desert , showed slides from my exploding collection of Antarctic images, and chatted about how "personal" stories offer us writers a sort of wild creativity and freedom.
When the conference ended we drove south towards Recherche Bay, to a solar-powered shack in the forests.
Unexpected, dominant piece of each day: In the land of nocturnal animals, road kill takes on stunning proportions.
Part of our morning ritual entailed pausing to shovel small, unfamiliar animals off the road. It felt like the right thing to do.
While doing so one day, Ed said to me, "What the hell is this one?" The grey-brown back and reddish belly, the muscular forearms, stocky, short legs.
Only yesterday as I culled photos from the trip did I sit down to add name to image. I came again to this guy and found it to be a male pademelon -- and Aboriginal name, sometimes called the rufous wallaby.
Looking at its living rellies online, I considered how islands like Tas tell a specific wild story of adaptation, how this adaptation is often portrayed as "exotic" and how site-specific plants and animals hold us in their thrall.
Thanks for that inspiration, pademelons. More about native plants and animals and how their life The Presidio in our next post.
7/22/2010
Dream of a Butterfly Dreaming
Don't tell anyone: Ed and I stole away from work to a matinee of Inception. We were the only souls in the theater. The story is built like a Chinese box and it represents all that is great about stories, the imagination, and matinees. For the two or so hours it cranked along, Inception gave me something to think about -- other than how ghastly the weather is currently in The Presidio, which seems to be Thought No. 1 these days.
Do you know what happens here in The Presidio in July and August? Well, it's not summer. Unless it's some sort of Christopher Nolan-devised anxiety-inducing dream-state. (Actually, if you wonder what the sky looks like here in summer, take note of how the sky looks in the crumbling world DiCaprio and his partner imagined in the film. Same-same.)
The sky is a silver dome. As someone who spends as much time as she can outside each day, this sky is both depressing and infuriating. On the really bad days, I am convinced someone has rigged this sky, Inception-style, to drive us all mad. Not that a few odd days of the big, glowing silver bowl -- (do we live in some hotel buffet steam-table serving vessel? Will a great spoon come and pull me out and slap me on a plate?) -- wouldn't offer some coolish variation on shades of blue and luminous clouds. But what happens in The Presidio is bright grey arrives, slaps down on us, and we live this way until September.
During these months, I walk around my writing studio, patrol the beaches and fields, and try not to scream.
I've been told there are more microclimates in the San Francisco Bay Area than anywhere else on Earth. Can this be true? I know if I walk about a mile over the hills here, I will hit true summer -- hot sun, tanned legs, tall, sweating glasses of iced tea.
However. Do I flee my home because the weather doesn't meet my needs? Or do I stick it out, go all white and pasty, and shove my weary brain into books and matinees? This feels like the more noble path: The weather and I are meeting, eye to eye, and I am learning what it is to feel honestly blue because I cannot, will not see the blue sky.
What is the weather learning from my resilience? Am I schooling the sky?
Part of my reading-to-ignore-the-silver-sky takes this form: The skeptical philosophy of Chuang Tzu. Does Christopher Nolan read Chuang Tzu? His work suggests so. At any rate, for obvious reasons given this oppressive and relentless sky, this work resonates for me. Perhaps this is the question: Is the weather trying to tell me something via the writing of Chuang Tzu? Or am I Chuang Tzu dreaming of the weather and how I will write about it in my book? Or am I Leslie Carol Roberts dreaming of a sky that is still weeks away holding tight with the trees and the great band of nesting migratory birds that keep me company each day?
"Once Zhuangzi dreamt he was a butterfly, a butterfly flitting and fluttering around, happy with himself and doing as he pleased. He didn't know he was Zhuangzi. Suddenly he woke up and there he was, solid and unmistakable Zhuangzi. But he didn't know if he was Zhuangzi who had dreamt he was a butterfly, or a butterfly dreaming he was Zhuangzi. Between Zhuangzi and a butterfly there must be some distinction! This is called the Transformation of Things."
(The Complete Works of Chuang Tzu, trans Burton Watson, Columbia University Press, New York, 1968)
Do you know what happens here in The Presidio in July and August? Well, it's not summer. Unless it's some sort of Christopher Nolan-devised anxiety-inducing dream-state. (Actually, if you wonder what the sky looks like here in summer, take note of how the sky looks in the crumbling world DiCaprio and his partner imagined in the film. Same-same.)
The sky is a silver dome. As someone who spends as much time as she can outside each day, this sky is both depressing and infuriating. On the really bad days, I am convinced someone has rigged this sky, Inception-style, to drive us all mad. Not that a few odd days of the big, glowing silver bowl -- (do we live in some hotel buffet steam-table serving vessel? Will a great spoon come and pull me out and slap me on a plate?) -- wouldn't offer some coolish variation on shades of blue and luminous clouds. But what happens in The Presidio is bright grey arrives, slaps down on us, and we live this way until September.
During these months, I walk around my writing studio, patrol the beaches and fields, and try not to scream.
I've been told there are more microclimates in the San Francisco Bay Area than anywhere else on Earth. Can this be true? I know if I walk about a mile over the hills here, I will hit true summer -- hot sun, tanned legs, tall, sweating glasses of iced tea.
However. Do I flee my home because the weather doesn't meet my needs? Or do I stick it out, go all white and pasty, and shove my weary brain into books and matinees? This feels like the more noble path: The weather and I are meeting, eye to eye, and I am learning what it is to feel honestly blue because I cannot, will not see the blue sky.
What is the weather learning from my resilience? Am I schooling the sky?
Part of my reading-to-ignore-the-silver-sky takes this form: The skeptical philosophy of Chuang Tzu. Does Christopher Nolan read Chuang Tzu? His work suggests so. At any rate, for obvious reasons given this oppressive and relentless sky, this work resonates for me. Perhaps this is the question: Is the weather trying to tell me something via the writing of Chuang Tzu? Or am I Chuang Tzu dreaming of the weather and how I will write about it in my book? Or am I Leslie Carol Roberts dreaming of a sky that is still weeks away holding tight with the trees and the great band of nesting migratory birds that keep me company each day?
"Once Zhuangzi dreamt he was a butterfly, a butterfly flitting and fluttering around, happy with himself and doing as he pleased. He didn't know he was Zhuangzi. Suddenly he woke up and there he was, solid and unmistakable Zhuangzi. But he didn't know if he was Zhuangzi who had dreamt he was a butterfly, or a butterfly dreaming he was Zhuangzi. Between Zhuangzi and a butterfly there must be some distinction! This is called the Transformation of Things."
(The Complete Works of Chuang Tzu, trans Burton Watson, Columbia University Press, New York, 1968)
7/20/2010
Paperback Writer
I recently found out that if you have a great hardback edition of your book -- ie, a book people call "beautifully designed" as I do, paperback days may have to wait. Well, it's not truly the fault of the book design. The fact is,
THE ENTIRE
EARTH AND SKY: Views on Antarctica October 2008: 323 pp.; 5.2 inches x
8.5 inches; 11 photographs.
ISBN: 978-0-8032-1617-4
(800-755-1105)
while doing "great" in sales (particularly for a book with no marketing except for a few ads and a personally funded book tour) cannot go paper until we sell more hardback copies.
It's not like I'm not already trying. While the book came out over a year ago, I continue to give readings across the U.S. and abroad (try buying the book in Australia or New Zealand where I did much of my research -- ha-ha on that idea) and make cold calls to bookstores to see if they carry my book.
The main resistance to purchasing it by bookstores? Price. The book costs over $20. "We'll carry the paperback," they tell me. "Cheaper to stock. And for a traveller's book like yours. More portable."
I come home, vaguely defeated by this news. It's all so much to manage these days for us writers. Remember when making books was about assembling a bunch of pages, stapling them together, then calling it a day? Ha-ha on that idea, too.
My husband Ed, who closes large deals on fiber optic cables for a living, finds this paper-back edition log-jam appalling.
"Get me a copy of your contract! Who makes this decision?" he squawked from our orange couch, where he balanced a bowl of pistachios and a Stella Artois beer while reading the latest on hybrid Lexus sedans.
"Nebraska has the paperback rights," I sniff. "They say we have to sell more of what we have first. But they've been really good to me. It's just the book business right now. Tough."
And it's true. Nebraska is an excellent press and I love working with them. And these are weird, paradigm-shift times for all of us in publishing
So.
This leaves me with no other route than to try and sell as many copies of THE ENTIRE EARTH AND SKY: Views on Antarctica as I can. I mean, this is what we polar explorers do, isn't it? Take charge and keep going with good cheer, even in the face of adversity?
This is my first foray into direct marketing, and I can say as a writer who prefers to sit for long hours in wide-open, wild places, like Antarctica and New Zealand (read about it in THE ENTIRE EARTH AND SKY) -- it sort of freaks me out in a way canoeing a rough river or sliding down an icy hillock do not.
But what are the options? Sit here in silence, writing away on my new project and give up trying to get more eyeballs on THE ENTIRE EARTH AND SKY? Wait til I see it in five years, dust-covered on the outdoor remainder table at Green Apple Books on Clement Street in San Francisco, next to faded copies of How Not to Act Old?
Someone suggested I do a YouTube author video where we get creative and show both what the book's about and what I went through to get this book written -- how I travelled to Antarctica in 1988 for three months, then reported the news in other places around the world, then found I thought about Antarctica every day.
So I began my slow path back to The Ice, reading and researching the people who went before me, the treaty and legal conventions, and the state of the ice and wildlife. A deeply personal quest, first as a reporter then as a single mother with a Fulbright working out of Gateway Antarctica International Research Centre in Christchurch.
Fifteen years after first setting foot on Ross Island, near Robert Falcon Scott's famous hut, I wrote my book about my life in Antarctica and subsequent explorations into the "little known" stories of that continent's exploration.
Why do I think Antarctica matters so much, to stake my life on this project for more than a decade? Well, I think Antarctica offers us much to consider -- and I felt and feel we can only fully embrace all we have here on Earth via close inspection. I love how Antarctica contains more than 60 percent of the Earth's fresh water, how the ice is more than 20 million years old, how the ice covers 98 percent of the continent. I love how penguins have evolved as birds who swim rather than fly.
And I loved the chance to take a nice long chunk of time and turn all this over in my mind and into the thing call book, to slow down my thinking from the rapid-fire worlds of mothering and journalism, to allow the feel and reach of The Ice to inhabit the feel and reach of my creative work.
More on the path to making the book in the next post. In the meantime, any thoughts on ways to get the book to more people's eyeballs?
Let me know.
THE ENTIRE
EARTH AND SKY: Views on Antarctica October 2008: 323 pp.; 5.2 inches x
8.5 inches; 11 photographs.
ISBN: 978-0-8032-1617-4
(800-755-1105)
while doing "great" in sales (particularly for a book with no marketing except for a few ads and a personally funded book tour) cannot go paper until we sell more hardback copies.
It's not like I'm not already trying. While the book came out over a year ago, I continue to give readings across the U.S. and abroad (try buying the book in Australia or New Zealand where I did much of my research -- ha-ha on that idea) and make cold calls to bookstores to see if they carry my book.
The main resistance to purchasing it by bookstores? Price. The book costs over $20. "We'll carry the paperback," they tell me. "Cheaper to stock. And for a traveller's book like yours. More portable."
I come home, vaguely defeated by this news. It's all so much to manage these days for us writers. Remember when making books was about assembling a bunch of pages, stapling them together, then calling it a day? Ha-ha on that idea, too.
My husband Ed, who closes large deals on fiber optic cables for a living, finds this paper-back edition log-jam appalling.
"Get me a copy of your contract! Who makes this decision?" he squawked from our orange couch, where he balanced a bowl of pistachios and a Stella Artois beer while reading the latest on hybrid Lexus sedans.
"Nebraska has the paperback rights," I sniff. "They say we have to sell more of what we have first. But they've been really good to me. It's just the book business right now. Tough."
And it's true. Nebraska is an excellent press and I love working with them. And these are weird, paradigm-shift times for all of us in publishing
So.
This leaves me with no other route than to try and sell as many copies of THE ENTIRE EARTH AND SKY: Views on Antarctica as I can. I mean, this is what we polar explorers do, isn't it? Take charge and keep going with good cheer, even in the face of adversity?
This is my first foray into direct marketing, and I can say as a writer who prefers to sit for long hours in wide-open, wild places, like Antarctica and New Zealand (read about it in THE ENTIRE EARTH AND SKY) -- it sort of freaks me out in a way canoeing a rough river or sliding down an icy hillock do not.
But what are the options? Sit here in silence, writing away on my new project and give up trying to get more eyeballs on THE ENTIRE EARTH AND SKY? Wait til I see it in five years, dust-covered on the outdoor remainder table at Green Apple Books on Clement Street in San Francisco, next to faded copies of How Not to Act Old?
Someone suggested I do a YouTube author video where we get creative and show both what the book's about and what I went through to get this book written -- how I travelled to Antarctica in 1988 for three months, then reported the news in other places around the world, then found I thought about Antarctica every day.
So I began my slow path back to The Ice, reading and researching the people who went before me, the treaty and legal conventions, and the state of the ice and wildlife. A deeply personal quest, first as a reporter then as a single mother with a Fulbright working out of Gateway Antarctica International Research Centre in Christchurch.
Fifteen years after first setting foot on Ross Island, near Robert Falcon Scott's famous hut, I wrote my book about my life in Antarctica and subsequent explorations into the "little known" stories of that continent's exploration.
Why do I think Antarctica matters so much, to stake my life on this project for more than a decade? Well, I think Antarctica offers us much to consider -- and I felt and feel we can only fully embrace all we have here on Earth via close inspection. I love how Antarctica contains more than 60 percent of the Earth's fresh water, how the ice is more than 20 million years old, how the ice covers 98 percent of the continent. I love how penguins have evolved as birds who swim rather than fly.
And I loved the chance to take a nice long chunk of time and turn all this over in my mind and into the thing call book, to slow down my thinking from the rapid-fire worlds of mothering and journalism, to allow the feel and reach of The Ice to inhabit the feel and reach of my creative work.
More on the path to making the book in the next post. In the meantime, any thoughts on ways to get the book to more people's eyeballs?
Let me know.
7/19/2010
Field Notes: Here Is Where We Walk -- One
Presidio National Park
San Francisco
An Unofficial Look at Place Known Since 1776 by Handle “Presidio” Gathered by Our Research Department
1. San Francisco Bay is relatively young: only about 8,000 years of ocean water flooding into what was once a large valley. Melting ice from the last glaciation raised ocean levels and thus the bay began to form.
2. Interesting rocky base in these parts: The Franciscan Complex. (Sometimes called the “World Famous” Franciscan Complex.)
3. Rocks Beneath Our Feet: Graywacke sandstone and argillite also lessor amounts of greenstone (altered submarine basalt), radiolarian ribbon chert, limestone, serpitinite (altered mantle material), and high-grade metamorphic rocks such as blueschist (high-pressure), amphibolite, and eclogite – these words typically fractured and mixed together to form a “melange.”
4. Range in age from 200 to 80 million years old
5. Franciscan Complex composed of semi-coherent blocks, called tectostratigraphic terranes, which were episodically scraped from the subducting oceanic plate, thrust eastward and shingled against the western margin of North America.
6. The Earth is a coolish design concept -- a dynamic place of moving pieces. Some of the best geologic detective work centers on the understanding of tectonic plates -- and how the lithosphere is broken up into seven or eight major plates and many, many minor plates.
7. A piece of the Presidio is an interesting rock called Chert. Chert epitomizes how movement and change define life on Earth.
(We spend so much time with rocks here because of recent the rocks call the shots – they determine what grows where, what the terrain is like, how much any species, even humans, can survive given their chemical composition.)
Note: This is not to suggest the rocks care, mind you. From our careful observations, we can say they are entirely absorbed with their own (losing) battle with wind and water, as well as with tectonic shifts. Thus their understandable (and forgiveable) wild indifference.
San Francisco
An Unofficial Look at Place Known Since 1776 by Handle “Presidio” Gathered by Our Research Department
1. San Francisco Bay is relatively young: only about 8,000 years of ocean water flooding into what was once a large valley. Melting ice from the last glaciation raised ocean levels and thus the bay began to form.
2. Interesting rocky base in these parts: The Franciscan Complex. (Sometimes called the “World Famous” Franciscan Complex.)
3. Rocks Beneath Our Feet: Graywacke sandstone and argillite also lessor amounts of greenstone (altered submarine basalt), radiolarian ribbon chert, limestone, serpitinite (altered mantle material), and high-grade metamorphic rocks such as blueschist (high-pressure), amphibolite, and eclogite – these words typically fractured and mixed together to form a “melange.”
4. Range in age from 200 to 80 million years old
5. Franciscan Complex composed of semi-coherent blocks, called tectostratigraphic terranes, which were episodically scraped from the subducting oceanic plate, thrust eastward and shingled against the western margin of North America.
6. The Earth is a coolish design concept -- a dynamic place of moving pieces. Some of the best geologic detective work centers on the understanding of tectonic plates -- and how the lithosphere is broken up into seven or eight major plates and many, many minor plates.
7. A piece of the Presidio is an interesting rock called Chert. Chert epitomizes how movement and change define life on Earth.
(We spend so much time with rocks here because of recent the rocks call the shots – they determine what grows where, what the terrain is like, how much any species, even humans, can survive given their chemical composition.)
Note: This is not to suggest the rocks care, mind you. From our careful observations, we can say they are entirely absorbed with their own (losing) battle with wind and water, as well as with tectonic shifts. Thus their understandable (and forgiveable) wild indifference.
Big News on the Big Salmon
Wondering what's happening in Rakaia, New Zealand, home to the world's largest public salmon sculpture? (There's a larger one in a private collection in Japan.) In addition to the Salmon Tales Restaurant, they have added a "4-D" salmon educational and entertainment center. But don't take our word for it: http://www.voxy.co.nz/national/4d-cinema-comes-rakaia/5/53329
Field Notes: Here Is Where We Walk
This begins the next iteration of The Entire Earth and Sky blog.
Goals for 2G Entire Earth and Sky blog:
1. Over the next 246 days, I will complete my book, Here Is Where We Walk, posting bit and pieces as I go.
2. Figure out if it is ethically OK to print a book about trees on any sort of paper.
3. Make and document a series of interactive "maps" -- of my two current favorite topics -- trees and how they grow and behave in general and Antarctic geology and ice.
4. Learn to use the laser cutter at work with such proficiency that I can create many iterations of my maps for a "show" that will tour the world.
Well, our team here in the Presidio clearly has a lot of work to do.
This blog will be refreshed weekly for the summer, more when school begins in September.
Goals for 2G Entire Earth and Sky blog:
1. Over the next 246 days, I will complete my book, Here Is Where We Walk, posting bit and pieces as I go.
2. Figure out if it is ethically OK to print a book about trees on any sort of paper.
3. Make and document a series of interactive "maps" -- of my two current favorite topics -- trees and how they grow and behave in general and Antarctic geology and ice.
4. Learn to use the laser cutter at work with such proficiency that I can create many iterations of my maps for a "show" that will tour the world.
Well, our team here in the Presidio clearly has a lot of work to do.
This blog will be refreshed weekly for the summer, more when school begins in September.
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