Proterozoic Through Quaternary Geology of the Union Hills, North Phoenix, Arizona
Author : Stephen Douglas Holloway
Publisher :
Page : 234 pages
File Size : 21,9 MB
Release : 1999
Category : Geology
ISBN :
Author : Stephen Douglas Holloway
Publisher :
Page : 234 pages
File Size : 21,9 MB
Release : 1999
Category : Geology
ISBN :
Author :
Publisher :
Page : 352 pages
File Size : 27,56 MB
Release : 1991
Category : Geology
ISBN :
Author : K.C. Condie
Publisher : Elsevier
Page : 553 pages
File Size : 32,41 MB
Release : 1993-02-03
Category : Science
ISBN : 0080869092
As a final product of the International Geological Correlation Program (IGCP) Project 217, this volume brings together significant advances in the understanding of Proterozoic crustal evolution. This IGCP Project focussed on nine research objectives: 1) Comparison of Archean and Proterozoic supracrustal assemblages to more fully understand differences between Archean and post-Archean tectonic regimes; 2) To more fully understand the geochemical differences between Archean and post-Archean sediments and to evaluate the various factors that control sediment composition; 3) From combined U/Pb zircon and whole-rock Sm/Nd studies, to see if the apparent 2.4-2.0 continental crust "generation gap" is real; 4) To employ new techniques in the dating of individual zircons to more fully understand Proterozoic tectonic history and the role of crustal reworking; 5) From trace element ratios and Nd isotopic data from basalts, to better understand Proterozoic mantle evolution; 6) To encourage more detailed studies of the anorogenic granite-anorthosite association to better understand its origin and significance in terms of crustal evolution; 7) From combined Nd, Pb, and Sr isotopic data, to more precisely estimate the amount of new continental crust formed during the Proterozoic; 8) To encourage joint P-T and geochronological studies of Proterozoic and high-grade terranes to better understand Proterozoic orogenesis: and 9) To try and understand why hydrothermal precious metal deposits are relatively rare in the Proterozoic compared to both the Archean and the Phanerozoic. The book should be of interest to professionals in the geosciences (especially geochemists, petrologists and structural geologists) and graduate students in the same fields.
Author : L. Gordon Medaris
Publisher : Geological Society of America
Page : 326 pages
File Size : 40,78 MB
Release : 1983
Category : Science
ISBN : 0813711614
Author : David A. Jones
Publisher :
Page : 120 pages
File Size : 50,49 MB
Release : 1996
Category : Geology, Stratigraphic
ISBN :
Author : Philip Merrill Blacet
Publisher :
Page : 55 pages
File Size : 44,86 MB
Release : 1985
Category : Geology
ISBN :
A study of the stratigraphy and structure of the Proterozoic stratified and associated intrusive rocks.
Author : Richard A. Spohn
Publisher :
Page : 392 pages
File Size : 30,63 MB
Release : 1996
Category : Reference
ISBN :
Author : Bruce Bryant
Publisher :
Page : 54 pages
File Size : 12,75 MB
Release : 2001
Category : Geology
ISBN :
Author : Dean Nelson Argenbright
Publisher :
Page : 162 pages
File Size : 23,74 MB
Release : 1986
Category :
ISBN :
Author : Peter John Frederick Ellis Evans
Publisher :
Page : 352 pages
File Size : 34,97 MB
Release : 1999
Category : Geology, Stratigraphic
ISBN :