Results 71 to 80 of about 2,697 (210)

Fate of Underground Brine Resources in Beach and Neritic Zones in Shallow Aquifers Driven by Salt Pumps

Water Resources Research, Volume 61, Issue 10, October 2025.
Abstract Underground brine in beach and neritic zones (UBBN), widely distributed on muddy coasts in arid coastal regions, undergoes dynamic salt cycling driven by a “salt pump” system, composed of hydraulic gradients, salinity gradients, and tidal forces.
Yufeng Zhang, Tianyuan Zheng, Xiujun Guo, Jian Luo   +3 more
wiley   +1 more source

The role of fluids in the chemical composition of the upper holocene sediment layer in the russian sector of the South-East Baltic

Russian Journal of Earth Sciences, 2020
An analysis of the of the chemical composition of the upper slimy precipitate layer in the Gdansk Deep demonstrated increased concentrations of Ca, Mg, K, and Na in areas associated with tectonic faults.
Krek Alexander, Krechik Viktor, Danchenkov Aleksandr, Mikhnevich Galina   +3 more
doaj   +1 more source

Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea [PDF]

, 2011
Subsurface sediments from a pockmark area in South-Western Barents Sea have been earlier found to contain elevated levels of petroleum-related polycyclic aromatic hydrocarbons. This work describes a comprehensive analysis of various biomarkers, including
Boitsov, Stepan, Chen, Y., Jensen, Henning K. B., Klungsøyr, Jarle, Kursheva, A., Litvinenko, I., Petrova, V.   +6 more
core  

Chemosynthetic Organic Matter Reveals a Protracted Episode of Past Methane Seepage Activities at a Newly Discovered Cold Seep Site (Mannar Basin) Off the East Coast of India

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Here, we present organic geochemical evidence of past methane‐seepage events in a sediment core retrieved from a recently discovered methane cold‐seep site off Mannar Basin, east coast of India. The significant negative C‐isotope excursion of organic matter (δ13CTOC) in the seep core compared to a reference non‐seep core suggests a substantial
Ankita Ghosh, Aninda Mazumdar, Mohd. Sadique, Aditya Peketi, Anjali Zatale, Kalyani Sivan, Sharmila Ravindran Pillai, Aman Sparsh   +7 more
wiley   +1 more source

Controls on authigenic carbonate precipitation at cold seeps along the convergent margin off Costa Rica [PDF]

, 2010
Five sediment cores from cold seeps at the forearc off Costa Rica were used to explore the relationship between fluid advection, dissolved Ca concentrations in upward migrating fluids, and authigenic CaCO3 precipitation.
Hensen, Christian, Karaca, Deniz, Wallmann, Klaus   +2 more
core   +1 more source

From Hydrocarbon to CO2 Storage: Unveiling the Potential of the Miocene Lille John Member in the Danish North Sea

Basin Research, Volume 37, Issue 5, September–October 2025.
Depositional evolution of the upper Miocene complex. ABSTRACT To achieve net‐zero carbon emissions by 2050, gigatonnes of CO2 must be captured and stored in the subsurface. Screening and exploration of prospective storage sites have thus gained momentum in recent years.
Zeenat Maniar, Florian Smit, Erik Skovbjerg Rasmussen, Kresten Anderskouv, Kenneth Bredesen, Lars Nielsen   +5 more
wiley   +1 more source

Notional Geological Traverses, Station Activities, and Sample Collection on Mons Malapert, Lunar South Polar Region

Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.
Abstract The geology of a potential Artemis landing site on Mons Malapert is examined using remote sensing techniques and lessons learned from Apollo missions to the lunar surface. Orthomosaics, digital terrain models, illumination models, thermal conditions, crater size‐frequency distribution analyses, geomorphological mapping, spectral and ...
David A. Kring, Amy L. Fagan, Valentin T. Bickel, Ariel N. Deutsch, Lisa R. Gaddis, Juliane Gross, Harald Hiesinger, Therese M. Huning, José M. Hurtado Jr., Wajiha Iqbal, Katherine H. Joy, Laszlo Keszthelyi, Myriam Lemelin, Chris A. Looper, José M. Martínez‐Camacho, Gordon R. Osinski, Eloy Peña‐Asensio, Nico Schmedemann, Matthew A. Siegler, Sonia M. Tikoo, Carolyn H. van der Bogert, Kris Zacny   +21 more
wiley   +1 more source

U.S. Law of the Sea cruise to map the foot of the slope and 2500-m isobath of the US Arctic Ocean margin, cruise report for 2009 [PDF]

, 2009
U.S. Law of the Sea cruise to map the foot of the slope and 2500-m isobath of the US Arctic Ocean margin CRUISES HE-0905 August 7 to September 16, 2009 Barrow, AK to Barrow ...
Armstrong, Andy, Mayer, Larry A.
core   +5 more sources

The Enigmatic Pockmarks of the Sandy Southeastern North Sea

Geochemistry, Geophysics, Geosystems
Natural seafloor depressions, known as pockmarks, are common subaqueous geomorphological features found from the deep ocean trenches to shallow lakes.
Christoph Böttner, Jasper J. L. Hoffmann, Daniel Unverricht, Mark Schmidt, Timo Spiegel, Jacob Geersen, Thomas Harald Müller, Jens Karstens, Katrine Juul Andresen, Lasse Sander, Jens Schneider von Deimling, Christopher Schmidt   +11 more
doaj   +1 more source

Seafloor mapping in the Arctic: support for a potential U.S. extended continental shelf [PDF]

, 2010
For the United States, the greatest opportunity for an extended continental shelf under UNCLOS is in the ice-covered regions of the Arctic north of Alaska.
Armstrong, Andy, Calder, Brian R., Gardner, James V., Mayer, Larry A.   +3 more
core   +2 more sources