Results 251 to 260 of about 2,710,958 (297)

The effects of bioturbation on porewater chemistry and early marine diagenesis: Evidence from a modern intertidal zone in Abu Dhabi, U.A.E.

Sedimentology, EarlyView.
ABSTRACT Early marine carbonate cements generally form in CaCO3‐supersaturated seawater at the seabed or shallow burial depths, resulting in syn‐sedimentary cemented firmgrounds and hardgrounds. The processes controlling early marine diagenesis are complex, particularly in coastal environments where geochemistry is influenced by different water sources
Drew Brown, Tom Kibblewhite, Fiona Whitaker, Daniela Gutierrez‐Rueda, Daniel S. Alessi, John‐Paul Zonneveld, Murray Gingras, Hilary Corlett   +7 more
wiley   +1 more source

Recognition of fossil keratose sponges in carbonates using petrographic and machine‐learning classification

Sedimentology, EarlyView.
ABSTRACT Filamentous, anastomosing spar‐filled networks in Phanerozoic carbonates have been interpreted as the mineralised remains of keratose (non‐spiculate) sponges, yet their recognition remains contested because fabrics of broadly similar appearance may arise from microbial, diagenetic or physical processes. This study combines direct fossil–modern
Jeong‐Hyun Lee, Seung‐Sep Kim, Cui Luo   +2 more
wiley   +1 more source

Alluvial ridge morphology on avulsing rivers

Sedimentology, EarlyView.
ABSTRACT Alluvial ridges are built by preferential channel‐belt deposition and control river avulsions, yet a systematic analysis of their morphology has been missing. To address this gap, we analyse a globally distributed dataset of 8970 alluvial ridge flanks on 14 different rivers.
James H. Gearon, Douglas A. Edmonds
wiley   +1 more source

Diagenetic controls on porosity evolution and pore type organisation in microporous carbonate rocks: Evidence for mesogenetic porosity formation

Sedimentology, EarlyView.
ABSTRACT Microporous carbonate rocks typically record complex diagenetic histories driven by microbial activity and fluid interactions within multiple diagenetic environments. The relative roles of meteoric and burial diagenetic processes in pore evolution remain debated, particularly within Cretaceous carbonate systems of the Middle East, as does the ...
Hugues Bitault, Cathy Hollis, Alain Tonetto, Pierre Deschamps, Philippe Léonide, François Fournier   +5 more
wiley   +1 more source

Outcrop and subsurface characterisation of a mixed tidal and wave‐influenced coastline (Triassic Red Beds, SE Spain)

Sedimentology, EarlyView.
ABSTRACT Paralic depositional systems are complex and heterogeneous sedimentary environments, presenting challenges for predicting reservoir architecture and connectivity. Their stratigraphic and facies variability arises from the dynamic interplay between fluvial, tidal and wave processes, and their sensitivity to sea‐level fluctuations, sediment ...
Luis Miguel Yeste, Marc Gil‐Ortiz, Neil David McDougall, Patricia Cabello, César Viseras   +4 more
wiley   +1 more source

The river Dniester valley: a long record of late-Cenozoic fluvial evolution within the Eastern Carpathian foreland and East European Platform margin. [PDF]

R Soc Open Sci
Matoshko AV, Gibbard P.
europepmc   +1 more source

The Effect of Potentiostatic Control on the Bioreduction of Hexavalent Chromium Using Bacillus cereus. [PDF]

Microorganisms
Chi H, Feng M.
europepmc   +1 more source

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Stratigraphy of the Ordovician Ashgillian Stage of Western Mongolia

International Geology Review, 1980
(1980). Stratigraphy of the Ordovician Ashgillian Stage of Western Mongolia. International Geology Review: Vol. 22, No. 5, pp. 575-586.
Kh. S. Rozman, Ch. Minzhin
exaly   +2 more sources

The Bashkirian Stage of Southwestern Darvaz, the Pamir Mountains: Stratigraphy and paleotectonics

Stratigraphy and Geological Correlation, 2012
Sections of the Bashkirian Stage of Southwestern Darvaz (the Pamir Mountains) are described. Based on fusulinids, the presence of all four Bashkirian substages was established. The Bashkirian beds transgressively overlie clastic-volcanic series of the Lower Carboniferous, and are conformably overlain by the Moscovian (Vereian).
E Ja Leven
exaly   +2 more sources