Calcareous Nannofossil Biostratigraphy Of The Early Miocene To Middle Eocene Interval 2790 M To Td

DOWNLOAD

Download Calcareous Nannofossil Biostratigraphy Of The Early Miocene To Middle Eocene Interval 2790 M To Td PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Calcareous Nannofossil Biostratigraphy Of The Early Miocene To Middle Eocene Interval 2790 M To Td book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page

Calcareous Nannofossil Biostratigraphy Of The Early Miocene To Middle Eocene Interval 2790 M To Td

DOWNLOAD
Author : David Waghorn
language : en
Publisher:
Release Date : 1997

Calcareous Nannofossil Biostratigraphy Of The Early Miocene To Middle Eocene Interval 2790 M To Td written by David Waghorn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Geology, Stratigraphic categories.

Calcareous Nannofossil Biostratigraphy Of The Early Miocene To Middle Eocene Interval

DOWNLOAD
Author : David Waghorn
language : en
Publisher:
Release Date : 1997

Calcareous Nannofossil Biostratigraphy Of The Early Miocene To Middle Eocene Interval written by David Waghorn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Geology, Stratigraphic categories.

Evolutionary Biostratigraphic And Taxonomic Study Of Calcareous Nannofossils From A Continuous Paleocene Eocene Boundary Section In New Jersey

DOWNLOAD
Author : Laurel M. Bybell
language : en
Publisher:
Release Date : 1994

Evolutionary Biostratigraphic And Taxonomic Study Of Calcareous Nannofossils From A Continuous Paleocene Eocene Boundary Section In New Jersey written by Laurel M. Bybell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Nannofossils categories.

Calcareous nannofossils were examined from upper Paleocene and lower Eocene marine sediments from six coreholes that were drilled in southern New Jersey ; microfossil data from New Jersey were compared to and were found to be consistent with material examined from the Atlantic Coastal Plain of Alabama, Maryland and Virginia ; the biostratigraphic and lithostratigraphic data indicate continuous deposition across the Paleocene-Eocene boundary in this part of New Jersey.

Integrated Micropaleontology Of The Waihapa 1 And Toko 1 Wells Onshore Taranaki New Zealand

DOWNLOAD
Author : H. E. G. Morgans
language : en
Publisher:
Release Date : 1999

Integrated Micropaleontology Of The Waihapa 1 And Toko 1 Wells Onshore Taranaki New Zealand written by H. E. G. Morgans and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Foraminifera, Fossil categories.

Latest Oligocene To Early Middle Miocene Quantitative Calcareous Nannofossil Biostratigraphy In The Mediterranean Region

DOWNLOAD
Author : Eliana Fornaciari
language : en
Publisher:
Release Date : 1996

Latest Oligocene To Early Middle Miocene Quantitative Calcareous Nannofossil Biostratigraphy In The Mediterranean Region written by Eliana Fornaciari and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.

Utilizing Indian Ocean Calcareous Nannofossil Biostratigraphy Of Miocene Sediments To Investigate Tectonic And Climatic Forcing During The Evolution Of The Himalayas

DOWNLOAD
Author : Jarrett W. Cruz
language : en
Publisher:
Release Date : 2020

Utilizing Indian Ocean Calcareous Nannofossil Biostratigraphy Of Miocene Sediments To Investigate Tectonic And Climatic Forcing During The Evolution Of The Himalayas written by Jarrett W. Cruz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Geology categories.

The geological history of Himalayans and Tibetan Plateau is important for understanding how our planet evolves, and how geological structures can have local and global effects on climate and floral and faunal evolution of a system. This thesis presents how biostratigraphy of calcareous nannofossils can be a vital tool when attempting to identify timing of sedimentological events captured within cores recovered from deep below the ocean floor. Here I utilize nannofossil biostratigraphy from International Ocean Discovery Program Expedition 354 Sites 1451 and 1450 drilled in the Eastern Bengal Fan to investigate the paleogeographic setting and evolution of the Himalayans. This is done by linking autogenetic characteristics of calcareous nannofossils to allogenic and autogenic processes directed by tectonic and climatic forcing. More specifically, this study uses biostratigraphy to identify nannofossils observed in sediments collected to produce a data set for assigning a biostratigraphic zonal scheme. The biostratigraphy is used as a baseline for calculating sedimentation rates and errors, relate sedimentation rates and turbidite frequencies to tectonic and climatic forcing and understanding the paleo environment. Biostratigraphy is a vital tool for identifying events directed by tectonic and climatic forcing and in turn, to test and support or reject other groups of researchers' hypotheses. Expedition 354 Site 1451 was successful at recording nannofossil markers from the Holocene (0 Ma) to the Miocene-Oligocene boundary (23 Ma). The Gradstein and others (2012) Time Scale was utilized to assign ages to the Martini (1971) and Okada and Bukry (1980) nannofossil zonal schemes. Sixty-one biostratigraphic events assigned by sixty-five marker species were observed delineating sixty-one zones/subzones discussed herein. The ages range from recently deposited (Holocene) to older than 57.4 million years (Paleogene). I utilize the biostratigraphic ages to analyze seven events representing pulses in turbiditic activity throughout the Miocene. Once the events were outlined, I compared each one to proposed tectonic and climatic events outlined in current published research in order to see whether they can be supported or rejected. Three of these events indicate the influence of significant tectonic forcing displaying nearly double the average sedimentation rate. The first event occurred around 6.1-8.2 Ma in the central Himalayans and has a strong source signal from the Ganges river system. The second and third events occurred around 8.3-10.9 Ma in the Eastern Tibetan Plateau and projects a strong source signal from the Brahmaputra river system. The fourth and fifth events can be linked to a monsoon activity and occurred around 10.8-13.5 Ma. The sixth event occurred around 14.1-14.91 Ma during the Middle Miocene cooling event and may have been influenced by a long-term sea level low. The seventh event occurred around 15.80-17.95 Ma during the Early to Middle Miocene climate optimum during a long-term sea level high. Site 1451 Holes A and B were drilled from sea floor to 1181.3 m below the sea floor with 86% recovery from Hole A and 29% recovery from hole B resulting in 628.9 m of total sediment collected. There were 245.1 meters of turbiditic sediment identified within the cores. This accounts for 38.9% of the total collected sediment. The lowermost turbidite sequence is assigned an age range of 15.80 to 17.95 Ma. Radiolarian blooms are identified in 18.2 m of sediment before any recorded turbidites. There are 5.47 m of volcanic ash layers denoting 8 identifiable volcanic events. There were also 40.85 m of plant fragment inclusions observed within the cores. These plant fragment inclusions were deposited between 0.29-1.26 Ma and 8.68+ Ma, leaving a gap in plant-fragment inclusions from 1.26-8.68 Ma. The commencement of significant plant fragment deposition correlates with the onset of the monsoons and activity of crustal thickening around 15-18 million years ago. In order to get a better understanding of the variation in depositional characteristics, 125 post cruise samples were analyzed from Site 1450 to correlate Pleistocene and Pliocene depositional patterns to Site 1451. Site 1450 biostratigraphy highlights a more expanded Pleistocene and Pliocene sections than Site 1451 with different sedimentation rates during the Pliocene/Pleistocene interval. This analysis highlights the variation in depositional characteristics from the two locations across the Bengal Fan head and hints to a possible reorganization of depositional patterns from source river systems around 5 Ma. This research has increased the resolution of proposed tectonic and climatic forcing events during the evolution of the Himalayan and Tibetan Plateau. Tectonic uplift in the central Himalayas initiated around 7.42+ Ma, and around 9.69-10.97 Ma in the Tibetan Plateau. Climatic forcing occurred around 14.91 to 15.8 Ma, altering sedimentation patterns in the Indian Ocean. Onset of turbidite deposition at site 1451 around 15.8 to 17.95 Ma confirms Early Miocene evolution of the Himalayas.

Evolutionary Biostratigraphic And Taxonomic Study Of Calcareous Nannofossils From A Continuous Paleocene Eocene Boundary Section In New Jersey

DOWNLOAD
Author : Laurel M. Bybell
language : en
Publisher:
Release Date : 1994

Evolutionary Biostratigraphic And Taxonomic Study Of Calcareous Nannofossils From A Continuous Paleocene Eocene Boundary Section In New Jersey written by Laurel M. Bybell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Nannofossils categories.

Calcareous Nannofossil Records Of Miocene Sea Level At The Marion Plateau South Eastern Australia And The Pliocene Pliestocene Formation Of Cold Water Carbonate Mounds North Eastern Atlantic Continental Margin

DOWNLOAD
Author : Emily Browning
language : en
Publisher:
Release Date : 2012

Calcareous Nannofossil Records Of Miocene Sea Level At The Marion Plateau South Eastern Australia And The Pliocene Pliestocene Formation Of Cold Water Carbonate Mounds North Eastern Atlantic Continental Margin written by Emily Browning and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Carbonates categories.

The revised age models for the upper Oligocene to middle Miocene interval of the Marion Plateau have been used to identify eleven sequence boundaries and sequences sets at the Marion Plateau; MSA1.2 (23.1 Ma), MSA1.4 (22.1 Ma), MSA2.1 (21.2 Ma), MSB1.1 (18.4 Ma), MSB1.2 (17.3 Ma), MSB2.1 (16.5 Ma), MSB2.2 (15.6 Ma), MSB2.3 (14.8 Ma), MSB3.1 (13.6 Ma), MSB3.2 (12.9 Ma), and MSB3.3 (11.8 Ma). The complementary Miocene oxygen isotope events Mi1, Mi1a, Mi1aa, Mi2, Mi2b, Mi3a, Mi3, Mi4, Mi5a, Mi5, and Mi6 are recognized in the Marion Plateau sequences. In addition correlation to sequences on the New Jersey margin, the Gulf of Papua, Great Australian Bight, and McMurdo Sound Antarctica indicate that these sequences are controlled by glacio-eustasy, primarily the increase of ice volume on Antarctica. Changes in the preservation, assemblage structure and diversity of calcareous nannofossils as well as %planktic foraminifera, %neritics coincide with transgressive phases and sequence boundaries. The principles of 'highstand shedding' are illustrated at the Marion Plateau by enhanced preservation of calcareous nannofossil, deposition of glauconite, unconformities and condensed intervals associated with early to middle Miocene sequence boundaries. Variations in surface water nutrient and temperature conditions at the Marion Plateau throughout the Miocene coincide with climatic events of the early Miocene (23 - 17 Ma), the Middle Miocene Climatic Optimum (17.6 - 15.4 Ma), and Middle Miocene Climatic Transition (14.8 - 13.8 Ma), and the stepwise growth of ice sheets on Antarctica. Calcareous nannofossil communities show evidence for precessional and eccentricity orbital forcing during the Middle Miocene Climatic Optimum, as well as a significantly cooler surface water mass at the Marion Plateau coinciding with the onset of the Middle Miocene Climatic Transition and Mi3a (14.8 Ma) glacial event. Changes in surface water fertility and temperature during the Middle Miocene Climatic Optimum agree with other studies that posit growth of significant ice volume on Antarctica starting as early as ~17.35 Ma. Further evidence for significant cooling at the Mi3a (14.8 Ma) glacial event agrees with studies suggesting a step-wise cooling for the formation of a semi- permanent Antarctic ice sheet and thermohaline circulation, starting first at 14.8 Ma (Mi3a) and intensifying at 13.9 Ma (Mi3).

Bibliography And Index Of Micropaleontology

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2000

Bibliography And Index Of Micropaleontology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Micropaleontology categories.

International Code Of Phylogenetic Nomenclature Phylocode

DOWNLOAD
Author : Kevin de Queiroz
language : en
Publisher: CRC Press
Release Date : 2020-04-29

International Code Of Phylogenetic Nomenclature Phylocode written by Kevin de Queiroz and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-29 with Nature categories.

The PhyloCode is a set of principles, rules, and recommendations governing phylogenetic nomenclature, a system for naming taxa by explicit reference to phylogeny. In contrast, the current botanical, zoological, and bacteriological codes define taxa by reference to taxonomic ranks (e.g., family, genus) and types. This code will govern the names of clades; species names will still be governed by traditional codes. The PhyloCode is designed so that it can be used concurrently with the rank-based codes. It is not meant to replace existing names but to provide an alternative system for governing the application of both existing and newly proposed names. Key Features Provides clear regulations for naming clades Based on expressly phylogenetic principles Complements existing codes of nomenclature Eliminates the reliance on taxonomic ranks in favor of phylogenetic relationships Related Titles: Rieppel, O. Phylogenetic Systematics: Haeckel to Hennig (ISBN 978-1-4987-5488-0) de Queiroz, K., Cantino, P. D. and Gauthier, J. A. Phylonyms: A Companion to the PhyloCode (ISBN 978-1-138-33293-5).