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Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Chapter 15: Two different lithosphere types in the Sierra Nevada, California Chapter 15: Two different lithosphere types in the Sierra Nevada, California
Chemical and isotopic characteristics of plutons in the western United States reflect compositions and protoliths of subjacent source materials. A discontinuously exposed shear zone that extends along the length of the Sierra Nevada in California marks a boundary between two areas manifested geologically by wall-rock and roof-pendant lithologies of different ages, depositional...
Authors
Ronald W. Kistler
Chapter 7: Jurassic granitoids and related rocks of the southern Bristol Mountains, southern Providence Mountains, and Colton Hills, Mojave Desert, California Chapter 7: Jurassic granitoids and related rocks of the southern Bristol Mountains, southern Providence Mountains, and Colton Hills, Mojave Desert, California
Jurassic plutons in the east-central Mojave Desert region are markedly different from older and younger Mesozoic plutons in the region. They form a chemically and texturally heterogeneous group that ranges in composition from diorite to syenogranite; some phases are alkalic. Igneous rocks in the southern Bristol Mountains, southern Providence Mountains, and Colton Hills are subdivided...
Authors
Lydia Fox, David M. Miller
Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska
Morphological, seismic-reflection, and sedimentological evidence indicates that glacial ice tongues cut large sea valleys into the Gulf of Alaska continental shelf during the Pleistocene. During the Holocene, glacially-derived sediments from the Copper River and other meltwater streams have been prograding seaward across the shelf, covering the glacial and glacimarine upper Yakataga...
Authors
Paul R. Carlson, Terry R. Bruns, Michael A. Fisher
Chapter 22: Changing patterns of extensional tectonics; Overprinting of the basin of the middle and upper Miocene Esmeralda Formation in western Nevada by younger structural basins Chapter 22: Changing patterns of extensional tectonics; Overprinting of the basin of the middle and upper Miocene Esmeralda Formation in western Nevada by younger structural basins
The middle and upper Miocene Esmeralda Formation of western Nevada was deposited in a continental basin that crops out over an area of about 2,000 km2. The formation consists of thin, westerly derived sedimentary rocks in the western three-quarters of the outcrop area and of thick (3+ km) easterly derived sedimentary rocks in the eastern quarter. Megabreccias along the eastern margin of...
Authors
John H. Stewart, David S. Diamond
Chapter 10: Shallow crustal deformation in the Pahranagat area, southern Nevada Chapter 10: Shallow crustal deformation in the Pahranagat area, southern Nevada
The Pahranagat area lies in the Basin and Range Province of southern Nevada. Paleozoic rocks in the study area were folded and faulted during the Sevier orogeny and subsequently extended prior to deposition of Tertiary strata. Middle Oligocene strata overlie the Paleozoic rocks with pronounced angular unconformity and were deposited on rocks of Late Cambrian through Pennsylvanian age in...
Authors
Angela S. Jayko
Chapter 6: Petrogenesis of the composite peraluminous-metaluminous Old Woman-Piute Range batholith, southeastern California; isotopic constraints Chapter 6: Petrogenesis of the composite peraluminous-metaluminous Old Woman-Piute Range batholith, southeastern California; isotopic constraints
The Late Cretaceous Old Woman–Piute Range batholith includes both metaluminous and strongly peraluminous granitoid series that intruded the reactivated craton of southeastern California shortly after the orogenic peak. Whole-rock Sr, Nd, and O, feldspar Pb, and zircon U-Pb isotopic compositions, in combination with major- and trace-element and petrographic data, indicate that although...
Authors
Calvin F. Miller, Joseph L. Wooden, Victoria C. Bennett, James E. Wright, G. Cleve Solomon, Richard W. Hurst
The effect of developmental activities on water quality functions of bottomland hardwood ecosystems: the report of the water quality workgroup The effect of developmental activities on water quality functions of bottomland hardwood ecosystems: the report of the water quality workgroup
No abstract available.
Authors
M. L. Scott, B.A. Kleiss, W.H. Patrick, C.A. Segelquist
The calculation of flushing flows for gravel and cobble bed rivers The calculation of flushing flows for gravel and cobble bed rivers
No abstract available.
Authors
Robert T. Milhous
Introduction Introduction
No abstract available.
Authors
J. E. Roelle, Gregor T. Auble, J. G. Gosselink
Mammals of La Selva, Costa Rica Mammals of La Selva, Costa Rica
No abstract available.
Authors
Don E. Wilson
Altered flows and created landscapes in the Platte River Headwaters, 1840-1990 Altered flows and created landscapes in the Platte River Headwaters, 1840-1990
No abstract available.
Authors
Fritz L. Knopf, Michael L. Scott
Human activities and ecological processes in bottomland hardwood ecosystems: the report of the Ecosystem Workgroup Human activities and ecological processes in bottomland hardwood ecosystems: the report of the Ecosystem Workgroup
No abstract available.
Authors
J. G. Gosselink, M.M. Brinson, L.C. Lee, Gregor T. Auble