Author: Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 632
Book Description
Minerals Yearbook
Author: Guide to National Parks and Monuments West of the Mississippi River
Author: Publisher:
ISBN:
Category : National parks and reserves
Languages : en
Pages : 230
Book Description
Description of surveying marks and monuments used in making topographic survey of Ohio
Author: Description of surveying marks and monuments used in making topographic survey of Ohio
Author: Ohio Co-operative Topographic SurveyPublisher:
ISBN:
Category : Michigan
Languages : en
Pages : 782
Book Description
Investigation of land subsidence and earth fissures in Cedar Valley, Iron County, Utah
Author: Paul InkenbrandtPublisher: Utah Geological Survey
ISBN: 1557918910
Category : Base flow (Hydrology).
Languages : en
Pages : 122
Book Description
This 116-page report presents the results of an investigation by the Utah Geological Survey of land subsidence and earth fissures in Cedar Valley, Iron County, Utah. Basin-fill sediments of the Cedar Valley Aquifer contain a high percentage of fine-grained material susceptible to compaction upon dewatering. Groundwater discharge in excess of recharge (groundwater mining) has lowered the potentiometric surface in Cedar Valley as much as 114 feet since 1939. Groundwater mining has caused permanent compaction of fine-grained sediments of the Cedar Valley aquifer, which has caused the land surface to subside, and a minimum of 8.3 miles of earth fissures to form. Recently acquired interferometric synthetic aperture radar imagery shows that land subsidence has affected approximately 100 mi² in Cedar Valley, but a lack of accurate historical benchmark elevation data over much of the valley prevents its detailed quantification. Continued groundwater mining and resultant subsidence will likely cause existing fissures to lengthen and new fissures to form which may eventually impact developed areas in Cedar Valley. This report also includes possible aquifer management options to help mitigate subsidence and fissure formation, and recommended guidelines for conducting subsidence-related hazard investigations prior to development.
Monument Reporter
Author: High-altitude Archeological Investigations at Cedar Breaks National Monument, Utah
Author: Timothy W. CanadayPublisher:
ISBN:
Category : Archaeological surveying
Languages : en
Pages : 228
Book Description
Mineral Resources of the United States
Author: United States. Bureau of MinesPublisher:
ISBN:
Category : Digital images
Languages : en
Pages : 884
Book Description
Geology and Uranium-vanadium Deposits of the Monument Valley Area, Apache and Navajo Counties, Arizona
Author: Irving Jerome WitkindPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 524
Book Description
Author: