Results 101 to 110 of about 1,849 (215)

Seismic refraction survey on the eastern flank of the Juan de Juca Ridge during SONNE cruise SO111

, 2020
During RV SONNE cruise SO111, five 50 to 60 km long seismic refraction and wide-angle profiles were shot on the eastern flank of the Juan de Fuca Ridge near 48°N, southwest of Vancouver Island, Northeastern Pacific. All profiles were shot in 1996 and run
Villinger, Heinrich, Grevemeyer, Ingo
core   +1 more source

Co-registered Geochemistry and Metatranscriptomics Reveal Unexpected Distributions of Microbial Activity within a Hydrothermal Vent Field

Frontiers in Microbiology, 2017
Despite years of research into microbial activity at diffuse flow hydrothermal vents, the extent of microbial niche diversity in these settings is not known. To better understand the relationship between microbial activity and the associated physical and
Heather C. Olins, Daniel R. Rogers, Christina Preston, William Ussler, Douglas Pargett, Scott Jensen, Brent Roman, James M. Birch, Christopher A. Scholin, M. Fauzi Haroon, Peter R. Girguis   +10 more
doaj   +1 more source

Marine Magnetic Anomalies Enhanced by Internal Stress in Rapidly Cooled Submarine Basalts

Geophysical Research Letters
Marine magnetic anomalies are pivotal to our understanding of plate tectonics, geomagnetic fields, and deep Earth dynamics. However, the question of how Ti‐rich titanomagnetites, the primary remanence carriers in oceanic crust rocks, can faithfully ...
Fei Han, Huapei Wang, Yiliang Lv, Greig A. Paterson, Andrew J. Biggin, Wyn Williams, Tao Yang, Junxiang Miao, Ting Cao, Duowen Zhu, Chen Wen, Shaochen Hu, Xiaowei Chen, Mengqing Wang, Yiming Ma, Jiakun Fang, Jiabo Liu   +16 more
doaj   +1 more source

(Table 2) Age determination from different sediment cores of the Juan de Fuca Ridge

, 2017
Sedimentation near mid-ocean ridges may differ from pelagic sedimentation due to the influence of the ridges' rough topography on sediment deposition and transport.
K M Costa (6981050), Gisela Winckler (6975875), Carbotte, S M, B Boulahanis (6981053), Jerry F McManus (6963575), Peter Huybers (732501), Boulahanis, B, Winckler, Gisela, Langmuir, Charles H, Huybers, Peter, Costa, K M, S M Carbotte (6981056), McManus, Jerry F, Charles H Langmuir (6965510)   +13 more
core   +1 more source

Sulfur isotope rations of sulfide minerals from the deposit of the Tsuchikura mine, Shiga Prafecture, Japan

, 1998
Sulfur isotope rations of sulfide minerals in the ore specimens from the deposit of the Tsuchikura mine are distrib-uted in a range from -0.8 to 5.4%, mostly from +0.5 to 3.0%, close to the previous data (from +1 to +3%) by Miyake and Sasaki (1980).
Harada, Kaori, Yamamoto, Masahiro, Kase, Katsuo   +2 more
core   +1 more source

Petrogenesis of Plagioclase Ultraphyric Basalts (PUB) From the Northeastern (NE) Pacific Ridge System: Evidence From Mineral Textures and Geochemical Characteristics

Geochemistry, Geophysics, Geosystems
Plagioclase crystals in plagioclase ultraphyric basalts (PUB) record changes in the major, trace, and isotopic compositions of evolving magmas. Those changes represent the record of specific processes in the crust and upper mantle that impart distinct ...
John B. Hewitt, Gokce K. Ustunisik, Roger L. Nielsen   +2 more
doaj   +1 more source

Measurements and Models of Heat Flux and Plumes from Hydrothermal Discharges Near the Deep Seafloor [PDF]

Oceanography, 2012
Deep-sea hydrothermal vents are conduits of heat and chemicals from the lithosphere to the hydrosphere. Their plumes rise hundreds of meters from the seafloor into the water column; during their ascent, they entrain ambient water and are subject to cross
Daniela Di Iorio, J. William Lavelle, Peter A. Ron, Karen Bemis, Guangyu Xu, Leonid N. Germanovich, Robert P. Lowell, Gence Genc   +7 more
doaj  

Data for: Dissolved organic carbon in basalt-hosted deep subseafloor fluids of the Juan de Fuca Ridge flank

Dissolved organic carbon in basalt-hosted deep subseafloor fluids of the Juan de Fuca Ridge ...
Lin, H
core   +1 more source

Data for: Geology of the northern end of Juan de Fuca Ridge and adjacent continental slope

, 1972
Bathymetry, seismic reflection profiles, magnetic data, and dredged basalt indicate that two centres of spreading have existed near the northern end of Juan de Fuca Ridge in the last 0.7 m.y. (Brunhes Geomagnetic Polarity Epoch).
Barr, Sandra Marie
core  

Composition and stratigraphy of late quaternary sediments from the northern end of Juan de Fuca Ridge

, 1981
Sediments from the northern end of Juan de Fuca Ridge are Late Quaternary in age and contain widely correlatable cycles of turbidity current and hemipelagic sedimentation. Sediments from the Ridge were examined for their mineralogy, structure, components
Cook, Raymond Arnold
core