About: Multiple generations of carbonaceous material deposited in Apex chert by basin-scale pervasive hydrothermal fluid flow

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About: Multiple generations of carbonaceous material deposited in Apex chert by basin-scale pervasive hydrothermal fluid flow Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1016/j.gr.2013.04.006
Description	The Pilbara Craton in Western Australia contains the best-preserved and most complete record of Archean rocks in the world. As such, they are some of the most studied rocks in the world; paleontologists, isotopic geochemists, geologists and geobiologists have all investigated these rocks for clues about the early biosphere and atmosphere. Here we show using high-resolution transmission electron microscopy that the carbonaceous material found in the Apex chert, and potentially in other associated units, was formed by multiple processes such as abiotic catalytic synthesis and/or biological synthesis. We use these data as well as the geological history of the craton to demonstrate that when the rocks of the Pilbara Craton experienced a high degree of post-depositional hydrothermal alteration, carbonaceous material could have been remobilized and redeposited. As the carbonaceous material within the Apex chert samples was formed over nearly a billion years, bulk chemistry, even at the micron level, will be unable to unambiguously delineate the presence of life in these ancient rocks, although nanoscale observations may provide a way forward in the search for ancient life. The Pilbara Craton in Western Australia contains the best-preserved and most complete record of Archean rocks in the world. As such, they are some of the most studied rocks in the world; paleontologists, isotopic geochemists, geologists and geobiologists have all investigated these rocks for clues about the early biosphere and atmosphere. Here we show using high-resolution transmission electron microscopy that the carbonaceous material found in the Apex chert, and potentially in other associated units, was formed by multiple processes such as abiotic catalytic synthesis and/or biological synthesis. We use these data as well as the geological history of the craton to demonstrate that when the rocks of the Pilbara Craton experienced a high degree of post-depositional hydrothermal alteration, carbonaceous material could have been remobilized and redeposited. As the carbonaceous material within the Apex chert samples was formed over nearly a billion years, bulk chemistry, even at the micron level, will be unable to unambiguously delineate the presence of life in these ancient rocks, although nanoscale observations may provide a way forward in the search for ancient life. (en)
Title	Multiple generations of carbonaceous material deposited in Apex chert by basin-scale pervasive hydrothermal fluid flow Multiple generations of carbonaceous material deposited in Apex chert by basin-scale pervasive hydrothermal fluid flow (en)
skos:prefLabel	Multiple generations of carbonaceous material deposited in Apex chert by basin-scale pervasive hydrothermal fluid flow Multiple generations of carbonaceous material deposited in Apex chert by basin-scale pervasive hydrothermal fluid flow (en)
skos:notation	RIV/00216208:11310/14:10288508!RIV15-MSM-11310___
http://linked.open...avai/riv/aktivita	I P Z
http://linked.open...avai/riv/aktivity	I, P(GAP210/10/0467), Z(MSM0021620855)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Jehlička, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	31082
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/14:10288508
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Archean; Pilbara Craton; Apex chert; carbonaceous material; high-resolution transmission electron microscopy (en)
http://linked.open.../riv/klicoveSlovo	Apex chert Archean Pilbara Craton carbonaceous material high-resolution transmission electron microscopy
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[120B64376EEB]
http://linked.open...i/riv/nazevZdroje	Gondwana Research
http://linked.open...in/vavai/riv/obor	DD
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Detekce exobiologických markerů Ramanovou spektrometrií jako hlavní metodou
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	25
http://linked.open...iv/tvurceVysledku	Jehlička, Jan Marshall, Alison Olcott Marshall, Craig P. Rouzaud, Jean-Noel
http://linked.open...ain/vavai/riv/wos	000328099900016
http://linked.open...n/vavai/riv/zamer	Material flow mechanisms in the upper spheres of the Earth
issn	1342-937X
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.gr.2013.04.006
http://localhost/t...ganizacniJednotka	11310

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