Tuesday, April 12, 2016

On the road again … but where? (geo-challenge)

Where on Google Earth? (click on image to view)

Here’s a special deal to celebrate the start of 2016 geo-tripping: three geo-challenges for the price of one! I visited all in a period of five days, traveling by car. Where was I? [answers here]

Ordered by increasing age of strata:

#1 Darker brown is caused by seepage from the base of a super important aquifer.

#2 Thousands of immigrants passed by—did anybody notice the white ash layers and curious wavy contact?

#3 This rock is gray when fresh, weathering to pale yellow or almost white. This is its type area, and its geological period is eponymous as well.

Please answer, speculate, discuss in Comments below. I’ll add locations in a few days, and posts will follow. Happy geo-travels!

Saturday, April 9, 2016

Juneberry Surrogates


Tall, taller than we know
bur oaks to be out West, where
they’re scrub-like or
bigger and low-branching, but
never sixty, eighty,
a hundred feet tall!
No wonder I never looked up.

But why should I?
Early April is early spring and
greening bursting buds are
too far away, too high.
Instead I walked through muted shade
and close straight trunks—
gray, brown, black, cracked, furrowed.

Then just fifty feet ahead at exactly eye-height,
spots of brilliant white flashed, and I saw
clouds of flitting white moths ...
two wild plums, still
bare of leaves,
blooming.


Last week I drove 500 miles east to where more precipitation lets trees grow tall. The “real world” and all that’s “important” soon faded. Six days were more than enough to repair my frame of mind and far from enough to make me homesick, but of course I came back anyway. We never learn.

In the draws were respectable hardwood trees, quite unlike our undersized versions. On the ground I found leaves of bur oak—I had no idea they grew so tall!—and American elm, and occasionally black walnuts split in two (Quercus macrocarpa, Ulmus americana, Juglans nigra). I may have passed basswood unawares (Tilia americana).

Wild plum (Prunus americana) is an old friend, from lower-elevations in eastern Wyoming. I see it has similar habits 500 miles east—growing most commonly in thickets but also as small understory trees, and blooming before leafing out. The flowers are said to be ill-scented; apparently I’ve not been close enough to notice. Ripe plums are sour but always a treat to find, as they’re often destroyed by our early frosts. I suppose the eastern ones are more plentiful.
Flowers are about one inch across.




This is tree-following week, when The Squirrel Basket kindly hosts a virtual gathering and we share news (check it out). But here in southeast Wyoming we had three March blizzards and then I left, so I’ve not been back to visit my juneberry. The trees I so enjoyed last week are surrogates.