Characterization of permineralized kerogen from an Eocene fossil fern
نویسندگان
چکیده
Department of Earth and Space Sciences, Center for the Study of Evolution and the Origin of Life, Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, USA Center for the Study of Evolution and the Origin of Life, Institute of Geophysics and Planetary Physics, and NASA Astrobiology Institute, University of California, Los Angeles, CA 90095-1567, USA Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington, DC 20015, USA Department of Earth and Space Sciences, Center for the Study of Evolution and the Origin of Life, Institute of Geophysics and Planetary Physics, Molecular Biology Institute and NASA Astrobiology Institute, University of California, Los Angeles, CA 90095-1570, USA
منابع مشابه
Molecular features of fossil organic matter in remains of the Lower Cretaceous fern Weichselia reticulata from Przenosza basem
Przenosza (Western Carpathians, Poland) is an important palaeobotanical Cretaceous basement with morphologically well-preserved plant remains. Both the morphology of the macroremains and the microscopic examination of isolated plant cuticles correspond to typical species of coastal swampy palaeoenvironments, mainly the fern Weichselia reticulata (Stokes & Webb). After isolation of the plant rem...
متن کاملRaman spectra of a Lower Cambrian ctenophore embryo from southwestern Shaanxi, China.
The Early Cambrian (approximately 540 million years old) Meishucun fossil assemblage of Ningqiang County (Shaanxi Province), China, contains the oldest complex skeletonized organisms known in the geological record. We here report the finding in this assemblage of an exquisitely preserved late-stage embryo of a ctenophore ("comb jelly"), its fine structure documented by confocal laser scanning m...
متن کاملSIMS analyses of the oldest known assemblage of microfossils document their taxon-correlated carbon isotope compositions.
Analyses by secondary ion mass spectroscopy (SIMS) of 11 specimens of five taxa of prokaryotic filamentous kerogenous cellular microfossils permineralized in a petrographic thin section of the ∼3,465 Ma Apex chert of northwestern Western Australia, prepared from the same rock sample from which this earliest known assemblage of cellular fossils was described more than two decades ago, show their...
متن کاملProtection of organic matter by mineral matrix in a Cenomanian black shale
Three types of pathways (degradation–recondensation, natural sulphurization and selective preservation) are commonly considered for the formation of kerogen dispersed in sedimentary rocks. A fourth pathway has been recently put forward, however, from studies on Recent marine sediments, the so-called sorptive protection mechanism. This pathway is based on the adsorption of otherwise labile organ...
متن کاملRock physics characterization of shale reservoirs: a case study
Unconventional resources are typically very complex to model, and the production from this type of reservoirs is influenced by such complexity in their microstructure. This microstructure complexity is normally reflected in their geophysical response, and makes them more difficult to interpret. Rock physics play an important role to resolve such complexity by integrating different subsurface di...
متن کامل