Results 71 to 80 of about 78,431 (269)
Morphology and tectonics of the Mid-Atlantic Ridge, 7°–12°S
, 2003 We present swath bathymetric, gravity, and magnetic data from the Mid-Atlantic Ridge between the Ascension and the Bode Verde fracture zones, where significant ridge–hot spot interaction has been inferred.
Bijwaard +56 more
core +1 more source
East African topography and volcanism explained by a single, migrating plume [PDF]
, 2020 Anomalous topographic swells and Cenozoic volcanism in east Africa have been associated with mantle plumes. Several models involving one or more fixed plumes beneath the northeastward migrating African plate have been suggested to explain the space-time ...
Gurnis, Michael +3 more
core +1 more source
Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen
Geological Journal, EarlyView.By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang +3 more
wiley +1 more source
, 1983 The mathematical formulation· of a one-dimensional, finite-difference compositional simulator is given in this work. The model assumes thermodynamic equilibrium between flowing electrolyte solutions and stationary mineral assemblages, and solves for the mineral identities and compositions and aqueous compositions as a function of both time and position.
openaire +2 more sources
δ13C tracing of dissolved inorganic carbon sources in major world rivers [PDF]
, 2005 δ13C tracing of dissolved inorganic carbon sources in major world ...
Bray, Colin +4 more
core +3 more sources
Geological Journal, EarlyView.This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura +4 more
wiley +1 more source
Models of Geochemical Speciation: Structure and Applications
, 2018 Being able to predict the behavior of trace elements in the environment is crucial for environmental risk assessment studies. For this reason, modeling, in addition to experimental methods, has become an indispensable tool to better understand the (bio)-geochemistry of trace elements and the processes involved in their availability, transport and ...
Di Bonito M +2 more
openaire +6 more sources
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
He huaxue yu fangshe huaxueDuring the in-situ leaching process of uranium, both the chemical composition of the leaching solution and the in-situ hydrogeochemical conditions can affect the chemical speciation of uranium. The chemical speciation of uranium significantly impacts its
Ya-wen CHEN +7 more
doaj +1 more source
Modeling nitrogen loading in a small watershed in southwest China using a DNDC model with hydrological enhancements [PDF]
, 2011 The degradation of water quality has been observed worldwide, and inputs of nitrogen (N), along with other nutrients, play a key role in the process of contamination.
Deng, Jia +6 more
core +5 more sources