7 Result(s)
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Anatoliy B. Kudryavtsev
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Article
Open AccessCalcitization of aragonitic bryozoans in Cenozoic tropical carbonates from East Kalimantan, Indonesia
Aragonite is commonly lost during the diagenesis of carbonate rocks, producing a significant bias in the fossil record. However, taphonomic loss of aragonitic biota can be nullified when skeletal aragonite is ...
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Chapter
Biogenicity of Earth’s Earliest Fossils
The abundant and diverse assemblage of filamentous microbial fossils and associated organic matter permineralized in the ~ 3465 Ma Apex chert of northwestern Australia—widely regarded as among the oldest recor...
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Article
Biogenicity of Apex Chert microstructures
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Chapter
Three-Dimensional Morphological (CLSM) and Chemical (Raman) Imagery of Cellularly Mineralized Fossils
Of all modes of fossilization, cellular mineralization, whether by the non-biologic process of permineralization (“petrifaction”) or by microbially mediated mineral precipitation (“authigenic mineralization”...
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Chapter
Confocal Laser Scanning Microscopy and Raman (and Fluorescence) Spectroscopic Imagery of Permineralized Cambrian and Neoproterozoic Fossils
Among all problems confronting the study of permineralized (petrified) fossils—the most life-like remnants preserved in the fossil record—two stand out, the need for (1) accurate documentation of their three-...
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Article
Images of the Earth's earliest fossils?
The criticism by Pasteris and Wopenka of our use of laser–Raman imagery to investigate the carbonaceous make-up of extremely ancient fossils1 focuses only on their Raman signature; however, our interpretation tha...
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Article
Laser–Raman imagery of Earth's earliest fossils
Unlike the familiar Phanerozoic history of life, evolution during the earlier and much longer Precambrian segment of geological time centred on prokaryotic microbes1. Because such microorganisms are minute, are p...
