Friday, April 28, 2006

Weather, Caves

W. E. Davies and I. M. Morgan  US Geological SurveyA cave is a natural opening in the ground extending beyond the zone of light and large enough to permit the entry of man. Occurring in a wide variety of rock types and caused by widely differing geological processes,
caves range in size from single small rooms to interconnecting passages many miles long. The scientific study of caves is called speleology (from the Greek words spelaion for cave and logos for study). It is a composite science based on geology, hydrology, biology, and archaeology.
Source: USGS NPS DOI Geology of Caves
USGS - U.S. Geological Survey, USGS Mapping DivisionThe Learning Web, a portion of the USGS website, is dedicated to K-12 education and life-long learning. Explore things on, in, around and about the Earth such as land, water, plants and animals, and maps. USGS Where Are America's Caves
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Recharging the ecosystem.  Sunlight shines into this cave entrance allowing abundant localized growth, which in turn provides food sources for life deeper within the cave. The National Park Service Cave and Karst ProgramRecharging the ecosystem. Sunlight shines into this cave entrance allowing abundant localized growth, which in turn provides food sources for life deeper within the cave. Karst is a region of irregular topography with sinks, underground streams, and caves that were formed by dissolution of soluble rock.
National Park Service DOI Cave and Karst Program
The National Park Service Cave and Karst Program. Information presented on this website, unless otherwise indicated , is considered in the public domain. It may may be distributed or copied as is permitted by the law.
Centuries of calcite deposition may cause stalactites and stalagmites to grow together, forming huge columns. (Ogle Cave, New Mexico JIM GOODBAR, BLMIn karst areas, rivers often disappear underground, where they continue to erode and shape the landscape. JIM GOODBAR, BLMFirst discovered in the mid-1950s, Musk Ox Cave on BLM lands in New Mexico was still being surveyed and mapped several decades later. Cave explorers have found fascinating formations as well as numerous fossil vertebrates dating from the Late Pleistocene, some 1.5 million years ago. JIM GOODBAR, BLM
This page was created by the U.S. Bureau of Land Management, Office of Public Affairs. Information presented on this website is public information and may be distributed or copied. Use of appropriate byline/photo/image credit is requested. Bureau of Land Management Welcome to the Underground
Cowboy Caves, located on the Colorado Plateau in Utah, are named for the cowboy graffiti and cattle brands scratched on the walls in relatively recent times. But they have provided archaeologists with a wealth of information about prehistoric life in the region as well. The caves show signs of human occupation beginning about 6,300 years ago, including fire pits, milling stones, grass matting, rock art, and unusual split-twig figurines. BLMCowboy Caves, located on the Colorado Plateau in Utah, are named for the cowboy graffiti and cattle brands scratched on the walls in relatively recent times. But they have provided archaeologists with a wealth of information about prehistoric life in the region as well.
The caves show signs of human occupation beginning about 6,300 years ago, including fire pits, milling stones, grass matting, rock art, and unusual split-twig figurines. BLM.

This page was created by the U.S. Bureau of Land Management, Office of Public Affairs. Information presented on this website is public information and may be distributed or copied. Use of appropriate byline/photo/image credit is requested. Cave Ecosystems Bureau of Land Management

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