Eastern Mojave Vegetation | Utah Highway 262 |
Tom Schweich |
East and then south to Montezuma Creek. | |
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Junction: US Highway 191 |
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Locations: McCracken Mesa. |
McCracken MesaEstimating from the written location, there is a collection Frasera albomarginata from near this location. |
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Junction: County Route 2416, to Hovenweep. |
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Near where the highway descends off McCracken Mesa toward Montezuma Creek is a paleosol collection site in the Jurassic Morrison Formation used by Retallack in his 2009 study of greenhouse crises of the past 300 million years. Retallack used stomatal index data for fossil Ginko and related leaves as a proxy for past CO2 spikes and paleosol chemical data as proxies for temperature and humidity changes. These data show that global warming due to CO2 rise is a not a unique event in earth history and that the magnitude of the coming anthropogenic greenhouse pales in comparison with past greenhouse spikes at times of global mass extinctions. |
Junction: Utah Highway 162 "Trading Post Road", west to Bluff. | |
Junction: Utah Highway 162 "E. Main St.", east to Aneth and Colorado. | |
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Montezuma Creek |
Junction: Red Mesa Rd | |
Utah above … Colorado below … This is Colorado Highway 41, from US Highway 160 northwest to the Utah State Line. | |
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Junction: US Highway 160 |
If you have a question or a comment you may write to me at: tomas@schweich.com I sometimes post interesting questions in my FAQ, but I never disclose your full name or address. |
Date and time this article was prepared: 11/3/2024 5:35:25 PM |