HeyJaredTDAVISGEO’s Newsletter
Descriptions of Geo-hikes (geology and hiking trips) and geologic maps, more info at https://www.meetup.com/https-www-meetup-com-geo-hikes/
- Indexed issues, last 90 days
- 10
- Latest publication
- Sep 27, 2026
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- Earliest in this view
- Jul 4, 2026
Latest issues
Geologic Maps Foundation Fund Raiser, 2026 (opens the original)
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Please help support our preserving of geologic maps in digital format and making them available to the public, for free.In 2026 we’ve added 54 new maps and updated about 15 more. Our educational outreach in 2026 has provided several talks and Geo-hikes field trips to the public; Thanks for reading TDAVISGEO’s Newsletter! Subscribe for free to receive new posts and support my work.<input class="email-input" name="email" tabindex=
Cyclone Polo (aka Hurricane Polo), Potential Geologic Impacts & Hazards, Loreto Area, Baja California Sur, Mexico (opens the original)
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Loreto lies in a particularly sensitive geomorphic setting. The city occupies the narrow coastal plain between the Gulf of California and the steep eastern escarpment of the Sierra de la Giganta. Short, steep watersheds descend rapidly from the mountains through arroyos and across alluvial fans toward Loreto and the Gulf. The primary hazard is water and sediment from the mountains. And the most serious geological threat may not be the hurricane’s wind. It is potentially the rapid transfer of wat
Pleistocene Glaciation of the White Mountains, California (opens the original)
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The White Mountains are within the rain shadow of the Sierra Nevada, yet the “Whites” are one of several extensively glaciated high ranges of the Great Basin. During the Pleistocene, colder temperatures and sufficient snow accumulation provided the conditions for alpine glaciers to develop in the higher parts of the central and northern White Mountains. Field observations by LaMarche (1965) found that glaciers developed mostly in eastward-draining canyons, while the steep western escarpment of t
Top of Buck’s Peak, a geologic panorama of the central and eastern White Mountains, California. (opens the original)
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From the summit of Buck’s Peak (~10,870 ft; ~3,313 m), the panorama across the central and eastern White Mountains provides an exceptional view of an older, relatively low-relief landscape transformed by late Cenozoic volcanism, faulting, uplift, tilting, and erosion into the present-day rugged mountains. Particularly important are remnants of late Miocene volcanic rocks that preserve portions of an older erosional landscape (Krauskopf, 1971; Jayko, 2009). The relic erosion surface is part of wh
Dry Run Field Trip: An Overview of Death Valley Geology (opens the original)
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Here’s a chance to see an area that I post on frequently. Geologists and public interested in geology are welcome to accompany me on this test run and learn the basics of Death Valley geology, but it will be limited to 12 participants.Death Valley National Park is one of the premier places in the world to study geology. Its spectacular exposures reveal an extraordinary record of Earth history, from Precambrian continental rifting and Cambrian seas to Cenozoic extension, volcanism, and active bas
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