Results 31 to 40 of about 13,020 (209)

ICESat-2 Applications for Investigating Emerging Volcanoes

Geosciences, 2022
Submarine volcanism in shallow waters (
Christine Simurda, Lori A. Magruder, Jonathan Markel, James B. Garvin, Daniel A. Slayback   +4 more
doaj   +1 more source

Revisiting the Pyhäsalmi volcanic complex, western Finland: new insights from volcanic-facies mapping [PDF]

Bulletin of the Geological Society of Finland
The Pyhäsalmi Volcanogenic Massive Sulfide (VMS) deposit, hosted by volcanic rocks of the 1.93–1.91 Ga Vihanti–Pyhäsalmi–Rautalampi belt, is the largest base metal sulfide deposit in Finland (75.7 Mt at 0.9 wt.% Cu, 1.9 wt.% Zn, 0.4 g/t Au, and 14.1 g/t ...
Janne Hokka, Ville Järvinen
doaj   +1 more source

Oxygen isotope geochemistry of the second HSDP core [PDF]

, 2003
Oxygen isotope ratios were measured in olivine phenocrysts (~1 mm diameter), olivine microphenocrysts (generally ~100–200 µm diameter), glass, and/or matrix from 89 samples collected from depths down to 3079.7 m in the second, and main, HSDP core (HSDP-2)
Eiler, John M., Kitchen, Nami E., Wang, Zhengrong   +2 more
core   +1 more source

Response and Recovery of the Comanche Carbonate Platform Surrounding Multiple Cretaceous Oceanic Anoxic Events, Northern Gulf of Mexico [PDF]

, 2015
The ubiquity of carbonate platforms throughout the Cretaceous Period is recognized as a product of high eustatic sea-level and a distinct climatic optimum induced by rapid sea-floor spreading and elevated levels of atmospheric carbon-dioxide.
Da-Gama, Rui O.B.P., Hull, David, Jeremiah, Jason, Kerans, Charles, Loucks, Robert G., Phelps, Ryan M.   +5 more
core   +1 more source

Improving Mercury Systematics With Molybdenum and Vanadium Enrichments: New Insights From the Cambrian‐Ordovician Boundary

Geophysical Research Letters
The Cambro‐Ordovician interval marks a significant transition from extinction to bio‐diversification in deep time. However, the relationship of bio‐transition to volcanism, commonly characterized by mercury (Hg) systematics in sedimentary records, has ...
Leibo Bian, Anthony Chappaz, Xiaomei Wang, David Amouroux, Niels Hemmingsen Schovsbo, Xiaowei Zheng, Hamed Sanei   +6 more
doaj   +1 more source

Iron Isotope Evidence for Heightened Primary Productivity Triggered by Hydrothermally Sourced Nutrients During Oceanic Anoxic Event 2

Geophysical Research Letters
Oceanic Anoxic Event 2 (OAE2, ∼94 Ma) represents a major global cycle perturbation in the mid‐Cretaceous greenhouse that is commonly attributed to increased biological primary productivity stimulated by elevated nutrients.
Binchen Li, Yong‐Xiang Li, Yuqi Li, Weiqiang Li   +3 more
doaj   +1 more source

Evidence of a previously unrecorded local tsunami, 13 April 2010, Cook Islands: implications for Pacific Island countries [PDF]

Natural Hazards and Earth System Sciences, 2011
Tsunami hazard assessments for Pacific Islands Countries (PICs) tend to focus on subduction zone sources. It is generally recognised that while volcanic-related tsunamigenic sources exist, they are probably only of minor relevance to the overall ...
J. Goff
doaj   +1 more source

Volcano-tectonic structures of Mayotte’s upper submarine slope: insights from high-resolution bathymetry and in-situ imagery from a deep-towed camera

Comptes Rendus. Géoscience, 2022
Unlike subaerial volcanic activity, deep submarine eruptions are difficult to detect, observe and monitor. The objective of this paper is to describe a large and complex volcanic region, named the Horseshoe area, recently discovered at ${\sim }$1500 m ...
Puzenat, Valentine, Feuillet, Nathalie, Komorowski, Jean-Christophe, Escartín, Javier, Deplus, Christine, Bachèlery, Patrick, Berthod, Carole, Gurioli, Lucia, Scalabrin, Carla, Cathalot, Cécile, Rinnert, Emmanuel, Loubrieu, Benoît, Pierre, Delphine, Pitel-Roudaut, Mathilde, Tanguy, Nina, Fouquet, Yves, Jorry, Stephan J., Lebas, Elodie, Paquet, Fabien, Thinon, Isabelle   +19 more
doaj   +1 more source

Ferromanganese nodules and micro-hardgrounds associated with the Cadiz Contourite Channel (NE Atlantic): Palaeoenvironmental records of fluid venting and bottom currents [PDF]

, 2012
Ferromanganese nodule fields and hardgrounds have recently been discovered in the Cadiz Contourite Channel in the Gulf of Cadiz (850–1000 m). This channel is part of a large contourite depositional system generated by the Mediterranean Outflow Water ...
Abouchami, Al-Aasm, Albarède, Ambar, Ambar, Baraza, Baturin, Beal, Berner, Berner, Berner, Birgel, Blinova, Boetius, Bogdanov, Borowski, Brass, Bryden, Cabeçadas, Cacho, Cangemi, Chen, Chen, Chester, Claude, Claypool, Coleman, Dicus, Díaz-del-Río, Ercilla, Faugères, Faugères, Faugères, Fernández-Puga, Fietzke, Fietzke, Fomina, Fortin, Francisco Javier González, Frankel, García, Gardner, Gardner, Giresse, Glasby, González, González, González, González, González, Grootes, Grootes, Hamoumi, Han, Hartmann, Hein, Hein, Hein, Hein, Hein, Hensen, Hernández-Molina, Hernández-Molina, Hernández-Molina, Hinrichs, Hlawatsch, Hodell, ISA, International Seabed Authority, Jesús Martínez-Frías, José Eugenio Ortiz, Kasten, Kennett, Kenyon, Kohn, Konshauser, Koschinsky, Koschinsky, Kozlova, León, León, León, León, León, Llave, Llave, Llave, Loubere, Lovley, Luis Somoza, Madelain, Magalhães, Maldonado, Mangini, Manheim, Martín-Puertas, Massé, Mazurenko, McArthur, McArthur, Medialdea, Medialdea, Meese, Merinero, Mulder, Munsell Color Co, Nealson, Nealson, Nelson, Nelson, Nelson, Niemann, O'Neill-Barringer, O'Nions, Ochoa, Palmer, Palmer, Paull, Pautot, Peckmann, Peckmann, Pinheiro, Piper, Platt, Puteanus, Raúl Merinero, Rebesco, Reyss, Ricardo León, Robinson, Rogers, Rona, Rosario Lunar, Scholz, Sevastýanov, Sivkov, Somoza, Stadnitskaia, Stadnitskaia, Stein, Stow, Stow, Stumpf, Summerhayes, Taylor, Tebo, Tebo, Templer, Teresa Medialdea, Trinidad de Torres, Tucholke, Usui, Vegas, Veizer, Viana, Voelker, von Stackelberg, Walters, Webb, Zahn, Zheng   +159 more
core   +2 more sources

Magnetic Expression of Hydrothermal Systems Hosted by Submarine Calderas in Subduction Settings: Examples from the Palinuro and Brothers Volcanoes

Geosciences, 2021
Volcanism is the most widespread expression of cyclic processes of formation and/or destruction that shape the Earth’s surface. Calderas are morphological depressions resulting from the collapse of a magma chamber following large eruptions and are ...
Luca Cocchi, Fabio Caratori Tontini, Filippo Muccini, Cornel E. J. de Ronde   +3 more
doaj   +1 more source