Results 61 to 70 of about 126,673 (254)

Detrital zircon and apatite (U‐Th)/He geochronology of intercalated baked sediments: a new approach to dating young basalt flows [PDF]

, 2011
Simple numerical models suggest that many basaltic lava flows should sufficiently heat the sediments beneath them to reset (U‐Th)/He systematics in detrital zircon and apatite.
Aciego, Aciego, Aciego, Blackburn, Blondes, Bristow, Dungan, Dungan, Farley, Farley, Flowers, Frances J. Cooper, Gardés, Gautheron, Hon, Hourigan, Jaeger, Kelley, Kip V. Hodges, Lipman, Lipman, Matthijs C. van Soest, McDougall, Min, Nasdala, Reiners, Schildgen, Schildgen, Self, Shuster, Vermeesch, Vermeesch, Wendt   +32 more
core   +2 more sources

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Experimental and numerical study on the axial compression behavior of circular concrete columns confined by BFRP spirals and ties

Reviews on Advanced Materials Science
This study investigates the compression behavior of circular concrete columns confined with basalt fiber-reinforced polymer (BFRP) stirrups, comparing their performance with traditional steel-reinforced columns.
Sufian Muhammad, Rahman Muhammad, Wang Xin, Fahmy Mohamed F.M., Wu Zhishen, Moussa Amr M.A.   +5 more
doaj   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

Geological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia, Ryohei Takahashi, Andrea Agangi, Pearlyn Manalo, Hinako Sato   +4 more
wiley   +1 more source

Emplacement of inflated Pāhoehoe flows in the Naude’s Nek Pass, Lesotho remnant, Karoo continental flood basalt province: use of flow-lobe tumuli in understanding flood basalt emplacement [PDF]

, 2018
Physical volcanological features are presented for a 710-m-thick section, of the Naude’s Nek Pass, within the lower part of the Lesotho remnant of the Karoo Large Igneous Province.
A Saunders, AE Jay, Anne E. Jay, BE Lock, BL Waichel, CP Rajendran, F Goff, F Holzförster, F Jourdan, Frédéric Fluteau, GPL Walker, GPL Walker, GPL Walker, H Hachimi El, H Svensen, HB Mattsson, HC Sheth, JD Greenough, JE Beane, JS Marsh, JSV Zijl van, Julian S. Marsh, K Burke, KA Hon, KB Knight, KG Cox, KG Cox, LG Viereck, M McClintock, M McClintock, M Moulin, M Moulin, ME Hartley, MJ Rossi, MK Reichow, MRG Sayyed, NR Bondre, NR Bondre, P-SS Ross, PB Wignall, PB Wignall, R Ernst, RA Duncan, RA Duraiswami, RA Duraiswami, RA Duraiswami, RA Duraiswami, RMH Smith, S Self, S Self, SE Bryan, SR Passey, SS Deshmukh, SW Anderson, T Thordarson, VE Camp, Vincent Courtillot, W Rogan   +57 more
core   +5 more sources

Creation of a Landslide Susceptibility Map Using Short‐Term Data From the July 2018 Heavy Rainfall in Southern Hiroshima Prefecture

Geological Journal, EarlyView.
This work advances landslide susceptibility mapping by incorporating short‐term trigger data with landscape susceptibility mapping. We also examine the importance of downsampling, watershed delineation and geospatial correlations in evaluating outcomes.
Kanta Kotsugi, Ting Liu, Toshiro Hata, Rebecca Muenich   +3 more
wiley   +1 more source

The Apollo 15 coarse fines (4-10 mm) [PDF]

, 1989
A new catalog of the Apollo 15 coarse fines particles is presented. Powell's macroscopic descriptions, resulting from his 1972 particle by particle binocular examination of all of the Apollo 15 4 to 10 mm fines samples, are retained.
Ryder, Graham, Sherman, Sarah Bean
core   +1 more source

Soils of Seabee Hook, Cape Hallett, northern Victoria Land, Antarctica [PDF]

, 2006
The soils of the Seabee Hook area of Cape Hallett in northern Victoria Land, Antarctica, were mapped and characterized. Seabee Hook is a low-lying gravel spit of beach deposits built up by coastal currents carrying basalt material from nearby cliffs ...
Balks, Megan R., Campbell, David I., Hofstee, Erica H., Petchey, Fiona   +3 more
core   +2 more sources

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Seismic Sequence Stratigraphy Applied to Reservoir Recognition and Evolution on Marine Carbonatic Ramp—Macaé Group (Albian to Cenomanian) of Campos Basin

Geological Journal, EarlyView.
A classic oil producing interval of the Campos Basin—Macaé Group is revisited through seismic stratigraphic analysis, providing a stratigraphic framework, characteristic depositional and relative time positioning for several complex structural settings.
Renata Alvarenga, Juliano Kuchle, Francyne Amarante, Garibaldi Armelenti, Claiton Marlon dos Santos Scherer, Luiz Fernando De Ros, Bruno de Souza Silva, Igor Marzano, Márcia Karam, Candy Shirley Rosa Contreras, João Claudio Conceição, José Luis Drummond Alves, Luiz Landau   +12 more
wiley   +1 more source