Results 61 to 70 of about 443 (143)

Exploring electron backscatter diffraction analysis as a tool for understanding stromatolite: Quantitative description of Cretaceous lacustrine stromatolite reveals formative processes and high‐resolution climatic cycles

open access: yesSedimentology, Volume 71, Issue 7, Page 2448-2469, December 2024.
Abstract Lacustrine stromatolites serve as important archives for recording environmental changes, and the detailed examination of their microfabrics is essential for understanding their formative processes and the environmental changes embedded within them.
Mar Simonet Roda   +4 more
wiley   +1 more source

Sedimentology and stromatoporoid paleoecology of Frasnian (Upper Devonian) mud mounds from southern Belgium [PDF]

open access: yes, 2011
Stromatoporoids are the most abundant large skeletal organisms in middle Frasnian carbonate mound environments of southern Belgium. They occur in environments ranging from flank and off-mound, mound core, shallow mound and restricted mound.
Kershaw, S., Boulvain, F, Da Silva, A.C.
core  

Cambrian, Ordovician and Silurian non-stromatoporoid Porifera [PDF]

open access: yes, 2013
The Cambrian, Ordovician and Silurian distributions of non-stromatoporoid sponges are reviewed. The earliest Cambrian faunas contain mostly hexactinellids, with protomonaxonids dominating middle Cambrian assemblages.
Botting, Joshep P.   +3 more
core   +1 more source

How to engineer a habitable planet: the rise of marine ecosystem engineers through the Phanerozoic

open access: yesPalaeontology, Volume 67, Issue 5, September/October 2024.
Abstract Ecosystem engineers are organisms that modify their physical habitats in a way that alters resource availability and the structure of the communities they live in. The evolution of ecosystem engineers over the course of Earth history has thus been suggested to have been a driver of macroevolutionary and macroecological changes that are ...
Alison T. Cribb, Simon A. F. Darroch
wiley   +1 more source

Chapter 8 Cambrian, Ordovician and Silurian non-stromatoporoid Porifera [PDF]

open access: yes, 2016
The Cambrian, Ordovician and Silurian distributions of non-stromatoporoid sponges are reviewed. The earliest Cambrian faunas contain mostly hexactinellids, with protomonaxonids dominating middle Cambrian assemblages.
Marcelo G. Carrera (2842136)   +3 more
core   +1 more source

Assessing and processing three-dimensional photogrammetry, sedimentology, and geophysical data to build high-fidelity reservoir models based on carbonate outcrop analogues [PDF]

open access: yes, 2022
A three-dimensional (3-D) outcrop depositional facies investiga-tion of carbonate reservoir analogues requires a comprehensive integration of outcrop with "behind-the-outcrop" geophysical data.
Khanna, Pankaj   +5 more
core   +1 more source

Authigenic Carbonate Burial Within the Late Devonian Western Canada Sedimentary Basin and Its Impact on the Global Carbon Cycle

open access: yesGeochemistry, Geophysics, Geosystems, Volume 25, Issue 3, March 2024.
Abstract Stable carbon isotope ratios (δ13C values) of marine carbonates are widely used to infer the relative burial rates of organic carbon, a source of oxygen to the ocean‐atmosphere system. This inference, however, is based on the assumption that ocean‐atmospheric carbon is buried either as organic carbon or as marine carbonate minerals. The burial
Sean Gazdewich, Tyler Hauck, Jon Husson
wiley   +1 more source

A giant boring in a Silurian stromatoporoid analysed by computer tomography [PDF]

open access: yes, 2008
This study describes the largest known Palaeozoic boring trace, Osprioneides kampto igen. et isp. nov., found within a stromatoporoid Densastroma pexisum from the Upper Visby Formation (lower Wenlock, Silurian) on the island of Gotland, Sweden ...
Beuck, L   +3 more
core  

Late Ordovician and early Silurian virgianid and stricklandioid brachiopods from North Greenland: implications for a warm‐water faunal province

open access: yesPapers in Palaeontology, Volume 10, Issue 1, January/February 2024.
Abstract An unusually rich and diverse suite of virgianid brachiopods, hitherto poorly known, is systematically described here for the first time from the Ordovician–Silurian boundary interval (late Katian – Aeronian) of North Greenland. The Late Ordovician virgianids comprise typical taxa of the warm‐water Tcherskidium fauna (e.g.
Jisuo Jin   +3 more
wiley   +1 more source

Contrasting morphology and growth habits of Frutexites in Late Devonian reef complexes of the Canning Basin, northwestern Australia

open access: yesGeobiology, Volume 22, Issue 1, January/February 2024.
Abstract Frutexites‐like microstructures are described from the exhumed Late Devonian reef complexes of the northern Canning Basin, Western Australia. Several high‐resolution imaging techniques, including X‐ray microcomputerised tomography, scanning electron microscopy and X‐ray fluorescence microscopy, were used to investigate morphology and ...
France Champenois   +4 more
wiley   +1 more source

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