Results 101 to 110 of about 113,669 (215)

THE ORIGIN OF MUD VOLCANOES

Геологія і корисні копалини Світового океану, 2019
The article shows that the immersion of clay strata in the region of high temperatures and pressures creates two fluid dynamic zones. In the upper zone, clay porosity decreases, and sedimentation and diagenetic waters are released; these elision ...
V.N. Kholodov
doaj   +1 more source

Methane Concentration in Mud Conduits of Submarine Mud Volcanoes: A Coupled Geochemical and Geophysical Approach

, 2019
Mud volcanoes are among the largest geological sources releasing methane gas. Numerous studies have revealed their origins and compositions released from submarine mud volcanoes. However, quantification of the amount of gas inside submarine mud volcanoes
J. Ashi, Tsuji, T., H. Otsuka, Kioka, A., Ashi, J., Otsuka, H., A. Kioka, T. Tsuji   +7 more
core   +1 more source

Conditions and timing for the precipitation of early marine diagenetic dolomite in the Triassic Dolomia Principale (northern Italy)

Sedimentology, EarlyView.
ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot, Giovanna Della Porta, Mathias Mueller, Fabrizio Berra, Benjamin F. Walter, Aratz Beranoaguirre, Sylvia Riechelmann, Oskar Schramm, Adrian Immenhauser   +8 more
wiley   +1 more source

Geomorphological Characteristics of Ain Mud Volcano and Determination of Mineral Composition of its Water and Mud by Utilizing Physical and Chemical Analysis Methods [PDF]

نشریه جغرافیا و برنامه‌ریزی, 2011
Ain mud volcano, lying 24 km off the Kahir village and in the coastal plain of Oman Sea, is one of the unique geomorphological phenomena in the of Sistan & Baluchestan Province.
Hossein Negaresh, Mostafa Faizi, Abozar Taheri, Mashaallah Rahmani, Zahra Negaresh   +4 more
doaj  

Salt Range Formation of Pakistan Preserves Unique Record of Volcanic Fertilization During the Ediacaran Shuram Excursion

Terra Nova, EarlyView.
ABSTRACT Thin, discontinuous, organic‐rich oil shale beds in the siliciclastic‐evaporitic Salt Range Formation (SRF) of Pakistan are of approximate Neoproterozoic to Cambrian age based on stratigraphic constraints. The beds are enriched (26–43 wt.% total organic carbon, TOC) in aliphatic organic matter (OM) of low thermal maturity despite their ...
Paul C. Hackley, Ryan J. McAleer, Jay M. Thompson, Brett J. Valentine, Imran Khan   +4 more
wiley   +1 more source

Rare Earth Element Potential in the Araí Rift Metavolcanic, Central Brazil: Gamma‐Ray Signatures, Mineralogy and Exploration Implications

Terra Nova, EarlyView.
ABSTRACT Although central Brazil hosts significant ion‐adsorption rare earth element (REE) deposits associated with A‐type granites, their coeval volcanic counterparts have been largely overlooked as exploration targets. This study demonstrates that acidic metavolcanic rocks of the Araí Group share strong radiometric, geochemical and mineralogical ...
Yuri Ribeiro, Nilson Francisquini Botelho, Valmir da Silva Souza, Diego Guilherme da Costa Gomes   +3 more
wiley   +1 more source

Recent Advances in Boron Removal From Geothermal Waters: A Review

Water and Environment Journal, EarlyView.
This review provides a comprehensive overview of boron removal technologies from geothermal fluids and highlights the limitations of conventional treatment methods. Ion exchange, hybrid processes and membrane filtration are identified as the most dominant approaches in recent studies.
Saadet Acar Can, Hasan Koseoglu
wiley   +1 more source

Gas seepage from Tokamachi mud volcanoes, onshore Niigata Basin (Japan): Origin, post-genetic alterations and CH_4-CO_2 fluxes

, 2011
Methane and CO2 emissions from the two most active mud volcanoes in central Japan, Murono and Kamou (Tokamachi City, Niigata Basin), were measured in from both craters or vents (macro-seepage) and invisible exhalation from the soil (mini- and ...
N. Yoshida, 田中, 和広, R. Nakada, K. Tanaka, G. Etiope, Etiope, G., Tanaka, K., Nakada, R., Yoshida, N.   +8 more
core   +1 more source

Two models of hydrocarbon deposits formation in the South Caspian and Middle Kura Depressions

Геофизический журнал
The model for the formation of hydrocarbon deposits in the South Caspian and Middle Kura depressions, despite a detailed study of the problem using geophysical and geochemical methods, remains a subject of debate.
N.P. Yusubov, I.S. Guliev
doaj   +1 more source

Mud volcanoes and the presence of PAHs. [PDF]

Sci Rep, 2020
Remizovschi A, Carpa R, Forray FL, Chiriac C, Roba CA, Beldean-Galea S, Andrei AȘ, Szekeres E, Baricz A, Lupan I, Rudi K, Coman C.   +11 more
europepmc   +1 more source