Výsledky vyhledávání - "Marion Jegen"

Akademický článek

Automated Seafloor Massive Sulfide Detection Through Integrated Image Segmentation and Geophysical Data Analysis: Revisiting the TAG Hydrothermal Field

Autor: Amir Haroon, Hendrik Paasche, Sebastian Graber, Sven Petersen, Eric Attias, Marion Jegen, Romina Gehrmann, Sebastian Hölz, Meike Klischies

Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 24, Iss 12, Pp n/a-n/a (2023)

Abstract Accessible seafloor minerals located near mid‐ocean ridges are noticed to mitigate the projected metal demands of the net‐zero energy transition, promoting growing interest in quantifying the global distributions of seafloor massive sulf

Externí odkaz: https://doaj.org/article/d7a3fc39c5f14558a838f359fc20fa56

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Akademický článek

The coastal transition zone is an underexplored frontier in hydrology and geoscience

Autor: Bradley A. Weymer, Mark E. Everett, Amir Haroon, Marion Jegen-Kulcsar, Aaron Micallef, Christian Berndt, Holly A. Michael, Rob L. Evans, Vincent Post

Publikováno v: Communications Earth & Environment, Vol 3, Iss 1, Pp 1-8 (2022)

Improvements in coastal shallow water geophysical technologies and drilling must be coupled with numerical modelling in order to close the knowledge gaps that exist around coastal aquifers, suggests a synthesis of methodological challenges and future

Externí odkaz: https://doaj.org/article/546e183ee56548bd94ebd618ca4124e7

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Akademický článek

Seafloor evidence for pre-shield volcanism above the Tristan da Cunha mantle plume

Autor: Wolfram H. Geissler, Paul Wintersteller, Marcia Maia, Tonke Strack, Janina Kammann, Graeme Eagles, Marion Jegen, Antje Schloemer, Wilfried Jokat

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-15 (2020)

Abstract Tristan da Cunha is assumed to be the youngest subaerial expression of the Walvis Ridge hot spot. Based on new hydroacoustic data, we propose that the most recent hot spot volcanic activity occurs west of the island. We surveyed relatively y

Externí odkaz: https://doaj.org/article/8858b8057bd04c7a9e3e5bdbc12d55ca

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Akademický článek

3D characterisation and quantification of an offshore freshened groundwater system in the Canterbury Bight

Autor: Aaron Micallef, Mark Person, Amir Haroon, Bradley A. Weymer, Marion Jegen, Katrin Schwalenberg, Zahra Faghih, Shuangmin Duan, Denis Cohen, Joshu J. Mountjoy, Susanne Woelz, Carl W. Gable, Tanita Averes, Ashwani Kumar Tiwari

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-15 (2020)

The authors here combine a range of geophysical data, numerical modelling and borehole data to present a high resolution map of an offshore freshened groundwater system in the Canterbury Bight, New Zealand. The study shows the extensions of the offsh

Externí odkaz: https://doaj.org/article/febbfaf543a842298867a155619f9027

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Akademický článek

Multi-Layered High Permeability Conduits Connecting Onshore and Offshore Coastal Aquifers

Autor: Bradley A. Weymer, Phillipe A. Wernette, Mark E. Everett, Potpreecha Pondthai, Marion Jegen, Aaron Micallef

Publikováno v: Frontiers in Marine Science, Vol 7 (2020)

Groundwater resources in coastal regions are facing enormous pressure caused by population growth and climate change. Few studies have investigated whether offshore freshened groundwater systems are connected with terrestrial aquifers recharged by me

Externí odkaz: https://doaj.org/article/f05495c4e7a9419abc92a4dff23de546

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PalVol v1: A proxy-based semi-stochastic ensemble reconstruction of volcanic stratospheric sulfur injection for the last glacial cycle (130,000–50 BP)

Autor: Julie Christin Schindlbeck-Belo, Matthew Toohey, Marion Jegen, Steffen Kutterolf, Kira Rehfeld

Perturbations in stratospheric aerosol due to explosive volcanic eruptions are a primary contributor to natural climate variability. Observations of stratospheric aerosol are available for the past decades, and information from ice cores has been use

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b5120af1ee2adb7c0f9be2b11fc9166
https://doi.org/10.5194/essd-2023-103

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Formation and geophysical character of transitional crust at the passive continental margin around Walvis Ridge, Namibia

Autor: Gesa Franz, Marion Jegen, Max Moorkamp, Christian Berndt, Wolfgang Rabbel

Publikováno v: eISSN

When interpreting geophysical models, we need to establish a link between the models' physical parameters and geological units. To define these connections, it is crucial to consider and compare geophysical models with multiple, independent parameter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8acd69be5e6cfeade2dc089b640152b7
https://egusphere.copernicus.org/preprints/2022/egusphere-2022-708/

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Ideas and perspectives: Land-ocean connectivity through groundwater

Publikováno v: Biogeosciences, 20, 3, pp. 647-662
Biogeosciences, 20, 647-662

For millennia, humans have gravitated towards coastlines for their resource potential and as geopolitical centres for global trade. A basic requirement ensuring water security for coastal communities relies on a delicate balance between the supply an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b83e7a95012d1101e75ee9dfb2d47a7
https://doi.org/10.5194/bg-2022-148

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Tectonic Controls on Gas Hydrate Distribution Off SW Taiwan

Autor: Pascal Kunath, Malte Sommer, Ho-Han Hsu, Sebastian Hölz, Liwen Chen, Elodie Lebas, Char-Shine Liu, Gareth Crutchley, Ingo Klaucke, Andrew Lin, Christian Berndt, Kirk D McIntosh, Saulwood Lin, Sina Muff, Marion Jegen, Wu-Cheng Chi, Judith Elger, Tomas Feseker, Dirk Klaeschen

Publikováno v: Journal of Geophysical Research: Solid Earth, 124 (2). pp. 1164-1184.

The northern part of the South China Sea is characterized by widespread occurrence of bottom simulating reflectors (BSR) indicating the presence of marine gas hydrate. Because the area covers both a tectonically inactive passive margin and the termin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b593082788bc8b6a13d3858143d6c45
https://doi.org/10.1029/2018jb016213

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Electrical Resistivity Anomalies Offshore a Carbonate Coastline: Evidence for Freshened Groundwater?

Autor: Francesco Chidichimo, Lorenzo Petronio, Jens Karstens, Chibuzo Valeria Ahaneku, Enzo Rizzo, Christian Berndt, Katrin Schwalenberg, Nicoletta Fusi, Michele De Biase, Michel Kühn, Zahra Faghih, Bradley A. Weymer, Amir Haroon, Xavier Garcia, Aaron Micallef, Marion Jegen

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Digital.CSIC: Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)

10 pages, 3 figures, 1 table, supporting information https://doi.org/10.1029/2020GL091909.-- Data Availability Statement: Data for this research are available at http://doi.org/10.5281/zenodo.4304549
Carbonate lithologies host considerable quant

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffb9c93fb11a08567c147eb976a14995
http://hdl.handle.net/10281/390291

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