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abstract::Although nitrogen is a key element in organic molecules such as nucleic acids and proteins, the timing of the emergence of its modern biogeochemical cycle is poorly known. Recent studies on the antiquity of the nitrogen cycle and its interaction with free oxygen suggests the establishment of a complete aerobic N bioge...
journal_title:Geobiology
pub_type: 杂志文章
doi:10.1111/j.1472-4669.2011.00271.x
更新日期:2011-03-01 00:00:00
abstract::New experimental results of fluid-mineral reactions at hydrothermal conditions relevant to life demonstrate that key redox reactions involving iron, sulfur, and hydrogen remain at disequilibrium at 100 °C, even in a heterogeneous system and thus are energetically favorable for microbial metabolism. Predictions from ge...
journal_title:Geobiology
pub_type: 杂志文章
doi:10.1111/j.1472-4669.2010.00255.x
更新日期:2010-12-01 00:00:00
abstract::We here show that nano-scale mapping of elements commonly utilized in biological cycles provides a promising new additional line of evidence when evaluating the extent of the contribution of biology to microbialites. Our case study comes from Lake Clifton in Western Australia, a unique environment where living domical...
journal_title:Geobiology
pub_type: 杂志文章
doi:10.1111/j.1472-4669.2010.00251.x
更新日期:2010-12-01 00:00:00
abstract::Evaporitic deposits are a globally widespread habitat for micro-organisms. The microbe-mineral environment in weathered and remobilized gypsum from exposed mid-Ordovician marine evaporite beds in the polar desert of Devon Island, Nunavut, Canadian High Arctic was examined. The gypsum is characterized by internal green...
journal_title:Geobiology
pub_type: 杂志文章
doi:10.1111/j.1472-4669.2010.00240.x
更新日期:2010-09-01 00:00:00
abstract::Reworked and fluidized fine-grained deposits in energetic settings are a major modern-day feature of river deltas and estuaries. Similar environments were probably settings for microbial evolution on the early Earth. These sedimentary systems act as efficient biogeochemical reactors with high bacterial phylogenetic di...
journal_title:Geobiology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-4669.2010.00234.x
更新日期:2010-06-01 00:00:00
abstract::The lower Cambrian grainy phosphorites of the northern Montagne Noire occur interbedded with grey to black, laminated to massive shales and limestones deposited along the edge of a continental shelf, associated with slope-related facies and unstable substrates. The concentration of phosphate took place by repeated alt...
journal_title:Geobiology
pub_type: 杂志文章
doi:10.1111/j.1472-4669.2009.00229.x
更新日期:2010-03-01 00:00:00
abstract::The diagenetic mineral assemblages in petroleum reservoirs control the formation fluid pH and pCO(2). Anaerobic biodegradation of petroleum is controlled by the transfer of electrons from reduced organic species to inorganic, redox sensitive, aqueous and mineral species in many cases through intermediates such as H(2)...
journal_title:Geobiology
pub_type: 杂志文章
doi:10.1111/j.1472-4669.2009.00224.x
更新日期:2010-01-01 00:00:00
abstract::Biotic recovery after the Cretaceous-Palaeogene (K-Pg) impact is one unsolved question concerning this mass extinction event. To evaluate the incidence of the K-Pg event on biota, and the subsequent recovery, a recent environmental disaster has been analysed. Areas affected by the contamination disaster of Aználcollar...
journal_title:Geobiology
pub_type: 杂志文章
doi:10.1111/j.1472-4669.2009.00213.x
更新日期:2009-12-01 00:00:00
abstract::Although a variety of leaf characteristics appear to be induced by light environment during development, analysis of ontogenetic changes in living broad leaved trees has suggested that a number of other traits also lumped into the classic 'sun' versus 'shade' morphological distinctions, including leaf size, shape, and...
journal_title:Geobiology
pub_type: 杂志文章
doi:10.1111/j.1472-4669.2008.00176.x
更新日期:2009-03-01 00:00:00
abstract::The persistence of DNA from microorganisms exposed to various concentrations of SiO2 (ranging from 0 to 3000 p.p.m.) was monitored over time. The impact of silica mineralization or silicification on the longevity of 16S rRNA and 16 s rDNA genes from whole cells of Bacillus subtilis and Escherichia coli K12 was quantif...
journal_title:Geobiology
pub_type: 杂志文章
doi:10.1111/j.1472-4669.2008.00177.x
更新日期:2008-12-01 00:00:00
abstract::The composition of the oceans and of its biota have influenced each other through Earth's history. Of all the biologically essential elements, nitrogen is the only one whose seawater concentration is clearly controlled biologically; this is presumably the main reason why the stoichiometry of nitrogen (defined as its m...
journal_title:Geobiology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-4669.2008.00144.x
更新日期:2008-06-01 00:00:00