Green River overlook, Island in the Sky District, Canyonlands National Park, southeastern Utah
نویسندگان
چکیده
منابع مشابه
An Aetosaur (reptilia:archosauria) from the Upper Triassic Chinle Group, Canyonlands National Park, Utah
A partial skeleton of the aetosaur Stagonolepis sp. is the first tetrapod body fossil recovered from Upper Triassic strata in Canyonlands National Park. The specimen consists of a partial tooth and numerous disarticulated vertebrae, ribs, and scutes found in the Blue Mesa Member of the Petrified Forest Formation (Chinle Group) near Upheaval Dome. Stagonolepis is an index taxon of the Adamanian ...
متن کاملFire regimes and forest structure in a sky island mixed conifer forest, Guadalupe Mountains National Park, Texas, USA
Fire is a key disturbance agent in the fire-prone mixed conifer and ponderosa pine forests of the southwestern United States. Human activities (i.e., livestock grazing, logging, and fire suppression) have resulted in the exclusion of fire from these forests for the past century and fire exclusion has caused changes in forest structure and composition. This study quantifies spatial and temporal ...
متن کاملDepositional Environments of Oil Shale in the Green River Formation, Douglas Creek Arch, Colorado and Utah
Douglas Creek arch in western Colorado and eastern Utah separates the Uinta and Piceance Creek basins. During deposition of the lower part of the Eocene Green River Formation, the arch provided a physical barrier dividing ancient Lake Uinta into two segments. As the lake expanded, the arch became a shoal area where marginal-lacustrine and mud flat sediment was deposited. Near the end of Green R...
متن کاملProcessesof Tamarix invasion and floodplain development along the lower Green River, Utah.
Significant ecological, hydrologic, and geomorphic changes have occurred during the 20th century along many large floodplain rivers in the American Southwest. Native Populus forests have declined, while the exotic Eurasian shrub, Tamarix, has proliferated and now dominates most floodplain ecosystems. Photographs from late 19th and early 20th centuries illustrate wide river channels with largely...
متن کاملHelminthes and Coccidia Infection of Wild Sheep (Ovis Ammon Orintalis) in Kabodan Island of National Park of Urmia Lake, Iran
Forty-one wild sheep (Ovis ammon orintalis) from Kabodan Island of National Park of Urmia Lake (North-West of Iran), were examined during a period of six months from October 2002 to March 2003, for helminthes and coccidian infection. The numbers of oocyst and eggs per gram of faeces (OPG & EPG) were determined by the centrifuge flotation technique using saturated sugar solution. The rate of inf...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geosites
سال: 2020
ISSN: 2693-3462,0375-8176
DOI: 10.31711/geosites.v1i1.76