Sentences with phrase «from geochemical analysis»
From the geochemical analyses carried out on the sediments deposited during the past 10,000 years in the Laguna de Rio Seco lagoon, a remote alpine lake in Sierra Nevada, at 3,020 m. above sea level, evidence has been found of atmospheric pollution from lead.
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The drill hole intersected a thick repetitive sequence of mafic and felsic sediments which showed no major structural deformation, a potential host for gold mineralisation, with geochemical analysis revealing alteration and mineralisation based on micro analysis of the cores by world class scientists from CODES in Tasmania.
A new method used to perform geochemical analysis of fossilized eggs from China has shown that oviraptorosaurs incubated their eggs with their bodies within a 35 - 40 ° C range, similar to extant birds today.
Researchers from Lyon, working in collaboration with a Chinese team, have developed a method based on the geochemical analysis of fossilized eggs and have calculated for the first time that the oviraptorosaur eggs were incubated within a 35 - 40 ° C temperature range.
Based on radiometric dating and geochemical isotope analysis, Czaja characterizes his fossils as having formed in this early Vaalbara supercontinent in an ancient deep seabed containing sulfate from continental rock.
Geochemical records from measurements of the foraminifera shells and fauna analyses will help us evaluate the changes in methane emissions, while studies of living and fossil species distribution and abundance of the benthic foraminifera community in methane seep areas will indicate the degree of methane release through time.
Scientists extract core samples from living corals by scuba diving and collecting a sample from the coral skeleton; geochemical analyses of these samples reveals how ocean temperature, circulation, and salinity change over time.
A geochemical context for stray gas investigations in the northern Appalachian Basin: Implications of analyses of natural gases from Neogene - through Devonian - age strata