Author: Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 242
Book Description
Report of Investigations
Author: Water-resources Investigations Report
Author: Geological Survey Professional Paper
Author: Groundwater-surface Water Interaction
Author: Corinna AbesserPublisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 228
Book Description
Selected papers from a symposium on A new Focus on Integrated Analysis of Groundwater-Surface Water Systems, held during the International Union of Geodesy and Geophysics XXIV General Assembly in Perugia, Italy, 11-13 July 2007.
Water-resources Investigations
Author: U.S. Geological Survey Bulletin
Author: Regional Aquifer-System Analysis Program of the U.S. Geological Survey, Summary of Projects, 1978-84
Author: Ren Jen SunPublisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 284
Book Description
U.S. Geological Survey Professional Paper
Author: U.S. Geological Survey Bulletin
Author: E. Neal HinrichsPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 246
Book Description
Modal, chemical, and isotopic data for the granitic rocks of the Tuolumne Meadows quadrangle.
U.S. Geological Survey Bulletin
Author: Paul Kibler SimsPublisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 268
Book Description
The Early Proterozoic Michigamme Formation of northern Michigan was deposited in the southeastern part of the Animikie basin. The formation conformably overlies the Goodrich Quartzite and comprises three widespread members a lower member of thin-bedded shale, siltstone, and sandstone; the Bijiki Iron-formation Member; and an upper member of tur- biditic graywacke, siltstone, and mudstone and a few local members. The Goodrich Quartzite is interpreted as having been deposited in a tidally influenced shallow marine environ- ment. The lower member of the Michigamme is interpreted as having been deposited in a tidally influenced environment, the iron-formation member as having been deposited below wave base in somewhat deeper water, and the upper member as having been deposited in still deeper water with turbidity currents being a major depositional mechanism. Several lines of evidence including paleocurrents, paleo- geographic setting, and neodymium isotopes suggest that the graywacke of the southern part of the outcrop area was derived from the south (Early Proterozoic Wisconsin magmatic terranes, Archean miniplates, and older Early Proterozoic sedimentary units formed on the continental margin), and that the graywacke in the northern area was derived from an Archean terrane to the north. The tectonic model that best fits the available data is a northward-migrating foreland basin.