Filters: Tags: Pleistocene (X)
537 results (226ms)|
Filters
Date Range
Extensions Types Contacts
Categories Tag Types
|
During the Pliocene to middle Pleistocene, pluvial lakes in the western Great Basin repeatedly rose to levels much higher than those of the well-documented late Pleistocene pluvial lakes, and some presently isolated basins were connected. Sedimentologic, geomorphic, and chronologic evidence at sites shown on the map indicates that Lakes Lahontan and Columbus-Rennie were as much as 70 m higher in the early-middle Pleistocene than during their late Pleistocene high stands. Lake Lahontan at its 1400-m shoreline level would submerge present-day Reno, Carson City, and Battle Mountain, and would flood other now-dry basins. To the east, Lakes Jonathan (new name), Diamond, Newark, and Hubbs also reached high stands during...
Five alcoves (rock shelters) in the Forty-Mile Canyon—Willow Gulch area of the Escalante River Basin in southeastern Utah yielded rich deposits of late Quaternary macrobotanical remains. The deposits were sampled and the contents identified in order to construct a chronology of vegetational change. Fourteen radiocarbon dates indicate that the fossils were deposited between 12,690 and 7510 yr B.P. (years before present). Ninety-one plant taxa were identified, 62 to species. Six species were common to all alcoves: Gambel oak (Quercus gambelii), box-elder (Acer negundo), prickly pear (Opuntia subgenus Platyopuntia), skunkbush (Rhus aromatica var. trilobata), serviceberry (Amelanchier utahensis), and Indian ricegrass...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Colorado Plateau,
Quaternary,
Quercus,
Western North American Naturalist,
oak,
Categories: Publication;
Types: Citation;
Tags: D 04680 Paleoecology,
Ecology Abstracts,
Pleistocene,
USA, New Mexico,
paleoecology,
Categories: Publication;
Types: Citation;
Tags: ASFA 1: Biological Sciences & Living Resources,
Anhinga laticeps,
Australia, Queensland,
Pleistocene,
Q1 01187 Palaeontology,
Categories: Publication;
Types: Citation;
Tags: ASFA 2: Ocean Technology Policy & Non-Living Resources; Ecol,
Brazil,
Brazil,
Pleistocene,
Pleistocene,
Categories: Publication;
Types: Citation;
Tags: China, People's Rep.,
China, People's Rep., Guanzhong Basin,
Climatic Changes,
Fluvial Sediments,
Fluvial deposits,
Categories: Publication;
Types: Citation;
Tags: Africa,
Africa,
Biosphere,
Climatic changes,
D 04680 Paleoecology; M1 200 Human Population-Biosphere Inte,
Categories: Publication;
Types: Citation;
Tags: ASFA 2: Ocean Technology Policy & Non-Living Resources; Ocea,
Analytical Methods,
Analytical techniques,
Climatic changes,
Ice,
Categories: Publication;
Types: Citation;
Tags: Aquatic Life,
Catchment Areas,
Catchment area,
Climatic Changes,
Coasts,
Categories: Publication;
Types: Citation;
Tags: ASFA 2: Ocean Technology Policy & Non-Living Resources,
ASW, Caribbean Sea, Lesser Antilles, Barbados,
Arctic zone,
Core analysis,
Holocene,
Categories: Publication;
Types: Citation;
Tags: Biogeography,
Climate,
Ecological genetics,
G 07270 Ecological genetics; D 04680 Paleoecology,
Genetic markers,
Categories: Publication;
Types: Citation;
Tags: Atmospheric chemistry,
Biogenic deposits,
Carbon dioxide,
Climatic changes,
D 04680 Paleoecology; SW 0850 Lakes; Q1 01382 Ecological tec,
Categories: Publication;
Types: Citation;
Tags: Australia,
D 04680 Paleoecology,
Ecology Abstracts,
Extinction,
Human impact,
Categories: Publication;
Types: Citation;
Tags: Adaptive radiation,
Adaptive radiation,
Corallinaceae,
Corallinales,
Cretaceous,
Categories: Publication;
Types: Citation;
Tags: Bivalves,
Bivalvia,
Body size,
Correlation analysis,
D 04658 Molluscs; Q1 01262 Geographical distribution,
Categories: Publication;
Types: Citation;
Tags: ASFA 1: Biological Sciences & Living Resources,
Community composition,
Coral reefs,
Ecological balance,
Ecosystem management,
Categories: Publication;
Types: Citation;
Tags: Archaeology,
Atmospheric precipitations,
El Nino phenomena,
El Nino-climate relationships,
Holocene,
Core Research Center, core R700, from well operated by USGSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "R700", "API Num": null, "Operator": "USGS", "Well Name": "Y-1 BLACK SAND BASIN", "Field": "UPPER GEYSER BASIN", "State": "WY", "County": "YELLOWSTONE NATL PARK", "Type": "FULL", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "44.45", "Longitude": "-110.85", "coordinates_geohash": "9xchveckpb94", "Source": "DERIVED FROM MAPPED LOCATION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "UNKNOWN", "Age": null, "Min Depth": "0", "Max Depth": "215"}], "crcwc_url": "https://my.usgs.gov/crcwc/core/report/13260",...
|
|
