Urban Fossil Value

[Image: J.M. Gandy, speculations toward the ruins of John Soane’s Bank of England – but, again, how about speculations toward the Bank of England’s fossils…?]

As Hurricane Rita carves away at the Gulf shore, Galveston burns, buses explode outside Houston, and New Orleans refloods through badly built and incompletely repaired levees, I stumbled upon an old article, from 1998, about fossilized cities.

Millions of years from now, in geographical regions “entombed by tectonic disturbances,” entire cities – “the abandoned foundations, subways, roads and pipelines of our ever more extensive urban stratum” – will actually come to form “future trace fossils.”

These “future trace fossils,” the article says, form easily preserved systems that are “a lot more robust than [fossils] of the dinosaurs. They include roads, houses and foundations.”

And yet, for all that, only those cities “that were rapidly buried by floods or sandstorms” will be “preserved for posterity.”

Los Angeles, for instance, “is on an upward trajectory, pushed by pressure from the adjacent San Andreas Fault system, and is doomed to be eroded away entirely.” But if a city is flooded, buried in sand, or otherwise absorbed downward, “the stage is set to produce ideal pickling jars for cities. The urban strata of Amsterdam, New Orleans, Cairo and Venice could be buried wholesale – providing, that is, they can get over one more hurdle: the destructive power of the sea.”

It is often remarked in architectural circles how megalomaniacal Nazi architect Albert Speer came up with his so-called theory of ruin value, in which he proposed a new Romano-Fascist Berlin designed to look good as a ruin in thousands of years.

But that’s boring – let’s talk about cities fossilizing over millions of years.

Urban fossil value.

The already buried, subterranean undersides of our Tube-hollowed, war-bunkered modern cities “will be hard to obliterate. They will be altered, to be sure, and it is fascinating to speculate about what will happen to our very own addition to nature’s store of rocks and minerals, given a hundred million years, a little heat, some pressure (the weight of a kilometre or two of overlying sediment) and the catalytic, corrosive effect of the underground fluids in which all of these structures will be bathed.”

Who knew, for instance, that plastics, “which are made of long chains of subunits, might behave like some of the long-chain organic molecules in fossil plant twigs and branches, or the collagen in the fossilized skeletons of some marine invertebrates”? Who knew, in other words, that plastics will fossilize?

Indeed, “with a favourable concatenation of tectonics and sea level, our species could leave behind in a geological instant a much more striking record than the dinosaurs left in a hundred million years.”

Urban rock walks, or: how to podcast a landscape

If you’ve ever wondered what the streets and buildings and monuments of the UK are constructed from, a good enough place to start is the BBC’s Walks with Rocks, where psychogeography meets paleontology meets continental drift. Paleo-psycho-ontogeography, perhaps. In any case, now you can learn the geological origins of paving stones, the density, formation pressures and tectonic ancestry of the architraves on that rockin’ bldg across the street from Boots.

For instance: ‘Looking at the foyer of Berkeley Square House we can see Norwegian igneous combined with Italian freshwater spring limestones. The adjacent Citroen and Rolls Royce showrooms tempt us with Tethyan limestone full of fossils. The Tethyan region was the seaway that lay to the South of the Eurasian Continent and to the North of Australia/India/Africa during the Late Paleozoic and Early Mesozoic periods’ – from Stop 7 on the Dover Street, W1, map.
While you’re at it, my televisual posts continue with British Isles: A Natural History on BBC One: ‘The series and inserts explore how over three billion years Britain has been boiled in lava, buried under tropical swamps and swept by desert sands. They show how it was crushed by enormous glaciers, released by warm winds, forested from north to south and how the influence of human life has dramatically changed the landscape.’ You can also ask what’s beneath your feet – no, it’s not sheepshit, it’s…
Then there are these audio recordings from the BBC’s new *Coast* show, which despite suffering from a rather alarming quantity of badly-accented historical reenactors offers one model for how to podcast a landscape.
Here’s a link to the first episode of the TV show, which, in combination with the second episode, traces out the following geography:

Finally, more Atlantis b.s. in the news, but I still think it’s cool: another tsunami theory, this one about Spartel Island (now submerged) in the Straits of Gibraltar: