Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Sunil Vadakkepuliyambatta"'
Autor:
Tobias Himmler, Doris Wagner, Diana Sahy, Sunil Vadakkepuliyambatta, Shyam Chand, Tõnu Martma, Kalle Kirsimäe, Rune Mattingsdal, Giuliana Panieri, Stefan Bünz, Daniel J. Condon, Jochen Knies, Aivo Lepland
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
The hydrocarbon seepage chronology during deglaciation across the formerly glaciated Barents Sea was established using uranium-thorium (U–Th) dating of seep carbonates. Seep carbonates were sampled with remotely operated vehicles (ROV) from the sea
Externí odkaz:
https://doaj.org/article/e6919fd482994d92850de99e0fa77be8
Autor:
Claudio Argentino, Kate Alyse Waghorn, Sunil Vadakkepuliyambatta, Stéphane Polteau, Stefan Bünz, Giuliana Panieri
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-2 (2024)
Externí odkaz:
https://doaj.org/article/1b462af85cab428fb18efaba27c6d1dd
Autor:
Giuliana Panieri, Jochen Knies, Sunil Vadakkepuliyambatta, Amicia L. Lee, Carsten J. Schubert
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-11 (2023)
Episodic methane leakage events from the seafloor of the Arctic–Atlantic gateway region occurred before and during the mid-Pleistocene transition, suggesting foraminiferal stable carbon isotope and source-specific biomarker analyses of borehole sam
Externí odkaz:
https://doaj.org/article/24f775b416674603bc7543f5a016be6f
Autor:
Melina Sinner, Wei Li Hong, Loïc N. Michel, Sunil Vadakkepuliyambatta, Jochen Knies, Arunima Sen
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
We used high-resolution imagery within a Geographic Information System (GIS), free gas and porewater analyses and animal bulk stable isotope measurements to characterize the biotic and abiotic aspects of the newly discovered Vestbrona Carbonate Field
Externí odkaz:
https://doaj.org/article/ff3749c683984b4795256f956f1eb0cd
Autor:
Naima El bani Altuna, Tine Lander Rasmussen, Mohamed Mahmoud Ezat, Sunil Vadakkepuliyambatta, Jeroen Groeneveld, Mervyn Greaves
Publikováno v:
Communications Earth & Environment, Vol 2, Iss 1, Pp 1-9 (2021)
Phases of high bottom water temperature in the northwestern Barents Sea caused repeated destabilization of methane gas hydrates since the last glacial, according to a foraminifera Mg/Ca bottom water temperature record and hydrate stability modelling
Externí odkaz:
https://doaj.org/article/7eb4c37c851c401aa62be2d48c9a44cf
Autor:
Claudio Argentino, Kate Alyse Waghorn, Sunil Vadakkepuliyambatta, Stéphane Polteau, Stefan Bünz, Giuliana Panieri
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract Methane emissions from Arctic continental margins are increasing due to the negative effect of global warming on ice sheet and permafrost stability, but dynamics and timescales of seafloor seepage still remain poorly constrained. Here, we ex
Externí odkaz:
https://doaj.org/article/5989681333e4448797d9455925790fcc
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
This study investigates the effect of changing sea level on deep sea gas emissions in the Arctic. The results show that small decreases in sea-level favors gas release. This implies that sea-level rise may partially counterbalance the effect of warmi
Externí odkaz:
https://doaj.org/article/d8629789a68948aaa0c0192522f59664
Autor:
Alexey Portnov, Jürgen Mienert, Monica Winsborrow, Karin Andreassen, Sunil Vadakkepuliyambatta, Peter Semenov, Valery Gataullin
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
Abstract Geophysical data from the South Kara Sea reveal U-shaped erosional structures buried beneath the 50–250 m deep seafloor of the continental shelf across an area of ~32 000 km2. These structures are interpreted as thermokarst, formed in anci
Externí odkaz:
https://doaj.org/article/be9c8b702e7347fcb64c72f95e2c50eb
Autor:
Katrina Kremer, Muhammed O. Usman, Yasufumi Satoguchi, Yoshitaka Nagahashi, Sunil Vadakkepuliyambatta, Giuliana Panieri, Michael Strasser
Publikováno v:
Progress in Earth and Planetary Science, Vol 4, Iss 1, Pp 1-13 (2017)
Abstract Submarine landslides are major agents of sediment mass transfer from the shallow to deep sea. Due to their rapid emplacement and tsunamigenic potential, such landslides are significant geohazards for society and off- and on-shore infrastruct
Externí odkaz:
https://doaj.org/article/f87220ac7e1446b99a80512803cead3d
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Methane release across the Arctic continental shelf has been attributed to modern dissociation of gas hydrate, accelerated by ocean warming. Here, the authors show that thermogenic methane was stored as subglacial gas hydrate during the last glaciati
Externí odkaz:
https://doaj.org/article/65a229e586464871a97deac3ba0d3618