Results 71 to 80 of about 9,343 (213)

Associations between fishes (Actinopterygii: Teleostei) and anthozoans (Anthozoa: Hexacorallia) in epipelagic waters based on in situ records

open access: yesJournal of Fish Biology, EarlyView.
Abstract We formally describe the association of fishes and anthozoans in epipelagic waters, extending this relationship to beyond the benthos. In situ observations and photographs of Aluterus schoepfii, Ariomma regulus, Caranx cf. latus and Brama spp.
Gabriel V. F. Afonso   +3 more
wiley   +1 more source

Interplay Between Mechanical and Petrochemical Models on the Fluid Extraction From Subduction Zones

open access: yesJournal of Metamorphic Geology, EarlyView.
ABSTRACT The breakdown of hydrous minerals during subduction results in a densification of the rocks, producing volume changes that can trigger fluid pressure fluctuations and hydrofracturing. These volume changes are controlled by the Clapeyron slope of the reaction and are quantified here using a macroscopic framework that integrates a zero ...
Thorsten Andreas Markmann   +1 more
wiley   +1 more source

Deep Microbial Colonization in Saponite-Bearing Fractures in Aged Basaltic Crust: Implications for Subsurface Life on Mars

open access: yesFrontiers in Microbiology, 2019
One of the most promising planetary bodies that might harbor extraterrestrial life is Mars, given the presence of liquid water in the deep subsurface. The upper crust of Mars is mainly composed of >3.7-billion-year-old basaltic lava where heat-driven ...
Yuri Sueoka   +3 more
doaj   +1 more source

Heat Flow Evidence for Hydrothermal Circulation in Oceanic Crust Offshore Grays Harbor, Washington

open access: yesGeochemistry, Geophysics, Geosystems, 2020
We report 30 new conductive heat flow measurements collected on the Juan de Fuca plate, offshore of Grays Harbor, Washington, just seaward of the deformation front. The data were collected along Cascadia Open‐Access Seismic Transect Lines 4 and 5.
Robert N. Harris   +2 more
doaj   +1 more source

Chemical Discrimination of Rutile From Different Metamorphic Source Rocks: Dealing With Hierarchical Data Structures in Random Forest Classification

open access: yesJournal of Metamorphic Geology, EarlyView.
ABSTRACT Rutile provides a wealth of petrochronological information in metamorphic geology and due to its high stability during processes of the sedimentary cycle, rutile takes a special position in sedimentary provenance analysis. Besides being one of the classical minerals datable using the U–Pb system, rutile incorporates a broad range of trace ...
Jan Schönig   +9 more
wiley   +1 more source

Spatial Heterogeneity of Pore Structure in the Crustal Section of the Samail Ophiolite: Implications for High VP/VS Anomalies in Subducting Oceanic Crust

open access: yesGeophysical Research Letters
Seismic surveys along subduction zones have identified anomalously high ratio of P‐ to S‐wave velocity (VP/VS) in the subducting oceanic crust that are possibly due to the presence of pore water.
Y. Akamatsu, T. Kuwatani, I. Katayama
doaj   +1 more source

Saline fluids play a major role in continental crust formation

open access: yesFrontiers in Earth Science
A new general perspective on the long-standing problem of continental crust formation is presented in this study. Unlike prevailing models for continental crust formation that rely heavily on the behavior of major and trace elements in silicate melts in ...
Paterno R. Castillo
doaj   +1 more source

Depositional Facies, Sequence Stratigraphy, and Diagenesis of Lower Cretaceous Carbonate Reservoir, Southern Iraq: Implications for Petroleum Exploration

open access: yesJournal of Petroleum Geology, EarlyView.
ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed   +8 more
wiley   +1 more source

Life strategies for Aminicenantia in subseafloor oceanic crust. [PDF]

open access: yesISME J, 2023
Booker AE   +7 more
europepmc   +1 more source

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