Download or read book Middle to Late Miocene Development of the Equatorial Pacific High productivity Belt written by Lisa Barbara Meng and published by . This book was released on 1996 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Middle to Late Miocene Palaeoceanography of the Equatorial Pacific Ocean written by Paul Minton and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Late Miocene and Early Pliocene Palaeoceanography at the Eastern Equatorial Pacific IODP Site U1338 written by Anna Joy Drury and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1984 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Miocene Ocean written by James P. Kennett and published by Geological Society of America. This book was released on 1985 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cenozoic History and Paleoceanography of the Central Equatorial Pacific Ocean written by Tjeerd Hendrik Van Andel and published by Geological Society of America. This book was released on 1975 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Abstracts written by and published by . This book was released on 1997 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Reprints written by and published by . This book was released on 1972 with total page 1110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Indian Ocean Geology and Biostratigraphy written by James R. Heirtzler and published by American Geophysical Union. This book was released on 1977 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Equatorial Pacific Sediment Deposition During the Early to Middle Miocene written by Christine Marie Piela and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The equatorial Pacific is a major region of biological production in the world oceans and an important part of the global carbon cycle. Changes in climate during the Cenozoic (65 Ma to present) have impacted the carbon cycle, and it is important to assess these impacts. This study focuses on the primary productivity of the equatorial Pacific during the early to middle Miocene (24 - 12 Ma) as recorded by Deep Sea Drilling Project (DSDP) Site 574, and investigates the sedimentary components potentially linked to productivity: bio-Ba, bio-SiO2, Corg, CaCO3, and uranium, as well as detrital thorium to estimate clay-bound barium. Within this time frame the plate beneath Site 574 traveled northwesterly across the equator and allows a unique opportunity to monitor changes in productivity and the carbon cycle in this region. It is difficult to determine directly primary productivity from the sedimentary record because the preservation of different proxies for this parameter - Corg, bio-CaCO3, and bio-SiO2, can be highly variable. The variability has many causes, including nutrient recycling in the water column and the depth of the carbonate compensation depth (CCD), which prevents the preservation and ultimate burial of plankton debris at the seafloor. To interpret the production versus deposition rates during the early and middle Miocene, proxies were used in conjunction with direct measurements of biogenic remains. By determining the concentrations of biogenically produced barium (bio-Ba), which is less affected by degradation, it is evident that the mass of Corg produced was much greater than that preserved in the sediments. We observed higher deposition of bio-Ba and bio- SiO2 as the site was transported over the equatorial divergence by plate tectonics, as expected. In contrast, CaCO3, accumulation was low in the divergence region, and coincides with a dissolution event known from other site studies in the equatorial Pacific. The pattern of uranium deposition resembles CaCO3 and Corg, and average U concentrations suggest that it was primarily deposited as a trace element in the shell material of biogenic carbonate. Corg also resembles CaCO3 and appears to represent primarily a dissolution signal. Total uranium analysis proved to be a useful proxy for Corg and CaCO3 preservation, and analysis of detrital thorium (232Th) concentration suggests very limited terrigenous clay input. Comparison of the different proxies reveals carbonate preservation events, changes in Corg preservation, and changes in deposition as DSDP Site 574 migrated northwesterly across the equator.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1995 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stratigraphy and Sedimentology of Eastern Equatorial Pacific ODP Site 677 written by Joanne Marie Alexandrovich and published by . This book was released on 1992 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Late Miocene Hiatuses and Related Events in the Central Equatorial Pacific their Depositional Imprint and Paleoceanographic Implications written by and published by . This book was released on 1989 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Late Miocene Hiatuses and Related Events in the Central Equatorial Pacific written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bibliography: leaves 150-164.
Download or read book Eastern Equatorial Pacific Export Production and Micronutrient Delivery During the Middle Miocene Climate Optimum written by Brandon Blake Bell and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolutionary Biology of Ostracoda written by N. Ikeya and published by Elsevier. This book was released on 2011-10-10 with total page 1373 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many competitive works on the market concerning evolutionary biology, but this volume is quite distinctive in its idiographic aspect focusing on Ostracoda viewed from a wide range of disciplines, ages and environments. The book deals with various lines of idiographic biology and palaeontology of Ostracoda and nomothetic trials focusing strongly on evolutionary biology. Particular themes are morphology, biology, evolution, speciation, ecology, palaeoecology, deep sea fauna, biogeography, palaeobiogeography, biostratigraphy and exploration, all concerning Ostracoda.The last decade has witnessed a spectacular renewal of interest in the study of Otracoda, particularly in the evolutionary biology of Ostracoda, including speciation. Ostracoda are unique, ranging in age from the Cambrian period to modern times with carapaces ready to be preserved as fossils, providing various lines of invaluable evidence regarding evolutionary processes.More than 120 participants from 20 countries assembled at the Ninth International Symposium on Ostracoda and this book is a collection of all the papers presented at the Symposium, plus selected papers submitted by non-attending members. It presents an outstanding record of much pioneering research and will be of interest to specalists in Ostracoda as well as all earth and life scientists concerned with evolution. Its value is further enhanced by easy-to-use indexes of authors, localities and taxa.
Download or read book Paleo productivity Variations During the Late Miocene in the Pacific Sector of Southern Ocean written by 温婉彤 and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
