Field assignment in yosemite
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The document summarizes geological and ecological information about Yosemite National Park. It describes how the Sierra Nevada mountain range was formed through uplift and contained large amounts of granite. It also discusses the mule deer, black bear, and giant sequoia tree species that inhabit Yosemite, including their evolutionary histories and adaptations that allow them to survive in the region.
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The document discusses geological changes that have occurred around Lake Tahoe over time. It notes that the Lake Tahoe basin was formed 3-5 million years ago by rising mountains on both sides, and the lake took shape from faulting, volcanic activity, and glaciation. Lava flows formed dams that allowed rivers and streams to fill the basin. The document also provides details on the present features of Lake Tahoe such as its depth and location along the California-Nevada border.
Yosemite national park
Yosemite National Park is located in California and was established in 1890 to protect the Sierra Nevada mountains and sequoia groves. The park covers over 700 square miles and contains many natural features, including Yosemite Falls, El Capitan, glacially carved valleys, and giant sequoia groves. It is home to a variety of wildlife such as black bears, mule deer, ravens, trout, and the smallest park resident, the mosquito. While the park aims to preserve the natural beauty and biodiversity, challenges like overtourism and invasive species threaten animal habitats.
Fallen leaf lake 20190617140742
This document provides information on Fallen Leaf Lake in California and the surrounding area. It describes the formation of the lake by glaciers during the last ice age. It also discusses some of the plant and animal species found in the area, including incense cedar trees, Steller's jays, bobcats, and the native Lahontan cutthroat trout. The document includes sections on the lake's tributary, Glen Alpine Creek, as well as the geological formation of the surrounding Sierra Nevada mountains.
Geology presentation
The document summarizes geological and biological features of the Lake Tahoe Basin area. It describes how subduction of the Farallon Plate led to the formation of granitic plutons in the Sierra Batholith. Glaciation during the Tioga and Tahoe periods sculpted the basin. Various species currently inhabiting the area are discussed, including beavers, coyotes, chickadees, willow trees and petrified wood. The origins of birds, gymnosperms and various rock types are also briefly outlined.
Geo 103 lab field
This document provides an overview of the geology of the Cuyamaca Mountains in Southern California. It discusses the geological history and evolution of the area, including how volcanic activity and plate collisions led to the formation of the mountains. It also describes some of the common plant and animal species found in Cuyamaca, such as chamise, lemonade berry, California quail, and ground squirrels. Additionally, it examines examples of the different rock types in the Cuyamaca Mountains, including rhyolite, quartzite, and granite. The document serves to educate about the geological features and natural history of this region.
Upper truckee river gizeh
The Upper Truckee River runs through the southern Lake Tahoe Basin and empties into Lake Tahoe. The document discusses the geological features formed by magmatic intrusion and glaciation in the area, including plutons, moraines, and erratics. It also describes some of the plant and animal species found along the Upper Truckee River, such as beavers, coyotes, northern chickadees, willow trees, and tamarack pines. Pollen from tamarack pines was noted to fill the air in spring, leading locals to call it the "spring orgy".
Lassen County Field Assignment
Lassen County in California features a variety of igneous and volcanic rocks formed during the Mesozoic and Pleistocene epochs. During field studies in the county, the author observed and photographed granite, dacite, basalt, and other rock samples. Field notes also describe the local plant life like orange honeysuckle and western grey squirrels, as well as volcanic features including Lassen Peak. Analysis of the geology and fossils found provides insights into how these rocks and species have evolved over millions of years.
Lab
Fallen Leaf Lake is a mountain lake located near Lake Tahoe in El Dorado County, California. It was formed by glaciers that traveled northward during the last ice age, carving out the lake's oval shape. If the glacier had continued north it would be part of Lake Tahoe. The lake has one main tributary, Glen Alpine Creek, which provides more water in the spring from snowmelt. Various coniferous trees like incense cedar grow around the lake. Wildlife such as bobcats and the native Lahontan cutthroat trout also live in the area. However, the trout population has been negatively impacted by the introduction of non-native species.
North arizona
The document summarizes a geological field study conducted in Northern Arizona. It describes common rock types found in the region such as granite, limestone, and shale. It also discusses animals that are prevalent like black bears, cougars, and rattlesnakes. The Grand Canyon is explored and provides examples of geological principles including unconformities and Steno's principles of superposition and lateral continuity seen in its layered rock sequences.
Historical The Bay Area Peninsula Region.pptx
The document provides information on the geology and natural history of the San Francisco Peninsula region. It discusses the formation of the region from the Franciscan Complex rocks approximately 200 million years ago during the subduction of the Farallon Plate. It also describes the local climate, faults, and various native plants and animals that have evolved to adapt to the unique environmental conditions of the region, including mule deer, California buckwheat, black-tailed jackrabbits, and local rock types such as limestone, granodiorite, and serpentine. Examples are provided of field identification of these rock types based on their properties. Photographs illustrate examples of rock layers, erosion features, and local flora and fauna.
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The document summarizes an endangered species management plan assessment for the black-footed ferret. Key points:
- The ferret population declined drastically due to disease, loss of prairie dog habitat, and other human impacts, leaving only 18 ferrets in the wild by the 1980s.
- Ferrets are entirely dependent on prairie dogs for habitat and prey, requiring around 15,000 acres to support 100 ferrets. Loss of prairie dogs is the biggest threat.
- Diseases like plague and distemper also threaten ferrets. Their reintroduction requires large, stable complexes of prairie dog colonies with minimal risks of disease.
Yosemite national park (gel)
Yosemite National Park is known for its breathtaking scenery including waterfalls, giant sequoia trees, and iconic rock formations. It was established in 1890 and protects diverse plant and animal species. The park is home to over 400 species including American black bears, Sierra Nevada bighorn sheep, and bats. Rock types within the park include quartz diorite, volcanic rocks from the Cenozoic era, conglomerate sedimentary rocks, and Half Dome displays the geological principle of crosscutting relationships as intrusions cut through older rock layers.
Fieldassignmentfinal 110710175111-phpapp02
This document provides a summary of John Fors's field assignment to the Middle Fork of the American River canyon near Auburn, California. It includes background on the methodology, brief geological history of the Sierra Nevada mountain range, description of the geology of the river canyon which has been carved out over millions of years. It also discusses gold deposits in the area, provides examples of rock and plant samples collected with identification and descriptions, and notes some of the geological features and plant life observed.
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