Results 111 to 120 of about 1,893,117 (286)

Late Pleistocene Volcanic Rocks From Tengchong Volcanic Field at SE Tibetan Plateau: Constraints on Petrogenesis and Mantle and Crustal Processes

Geological Journal, EarlyView.
Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley   +1 more source

A Reassessment of Petrochemistry of ~1.2 Ga Tonalitic Rocks of the Northern Tugela Terrane, Natal Metamorphic Belt, South Africa: Further Constraints on the Evolution of This Belt

Geological Journal, EarlyView.
Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta, Saumitra Misra, Thembiso O. Basupi   +2 more
wiley   +1 more source

Deep Geothermal Resources with Respect to Power Generation Potential of the Sinian–Cambrian Formation in Western Chongqing City, Eastern Sichuan Basin, China

Energies
The Rongchang–Dazu region in western Chongqing (eastern Sichuan Basin, China), known for its seismic activity, is a promising area for deep geothermal resource development; however, practical development is limited. Key geological understandings, such as
Xiaochuan Wu, Wei Wang, Lin Zhang, Jinxi Wang, Yuelei Zhang, Ye Zhang   +5 more
doaj   +1 more source

Mineral scaling in geothermal fields: A review

, 2010
Geothermal power is an established energy source in several countries, for example New Zealand and Iceland. However the proposed geothermal operations in South Australia occurs at a much greater depth (5 km) and the heat source is radioactive decay ...
Ngothai, Y., Yanagisawa, N., Rose, P., Brugger, J., Pring, A., O'Neill, B.   +5 more
core  

Heterogeneous Exhumation Mechanisms in Neoproterozoic Collisional Metamorphism: P–T Constraints From Pelotas and Punta del Este Terranes, Southern Brazil and Uruguay

Geological Journal, EarlyView.
Petrography, thermobarometry, and pseudosection modelling reveal peak metamorphic conditions of 3–7.5 kbar and 520°C–800°C in Tonian‐Cryogenian orthogneisses of the Dom Feliciano Belt. Metamorphic field gradients of 27°C/km–39°C/km and variable exhumation mechanisms support correlation of these units as remnants of a Himalayan‐type Piratini Orogeny ...
Thaiane Niederauer‐Santos, Carla Cristine Porcher, Daniel Triboli Vieira, Edinei Koester, Diego Jaldín, Karina Luengo, Luisa Caon   +6 more
wiley   +1 more source

Scaling Climate Finance: an Analysis of co‐financing Trends in the Global Environment Facility

Journal of Corporate Accounting &Finance, EarlyView.
ABSTRACT Current estimates of the climate finance gap range from $4 to $6 trillion in annual funding requirements throughout the next decade. Achieving the goals negotiated in the recent 30th Conference of the Parties (COP 30) requires a coordinated finance mobilization campaign.
Albert Molnár, Ágnes Csiszárik‐Kocsir   +1 more
wiley   +1 more source

Higher Energy Demands and Lower Body Condition in a Hot Spring: Comparing Relict Leopard Frogs at Two Thermally Contrasting Sites

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Following range‐wide decline, all remnant populations of the relict leopard frog (Rana onca) in the eastern Mojave Desert of the southwestern USA occupied geothermally influenced hot springs. In recent years, however, several large populations have been established at cold‐water sites.
Robert P. Pelletier, Michael D. Treat, Frank van Breukelen, Jef R. Jaeger   +3 more
wiley   +1 more source

Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia

Journal of Quaternary Science, EarlyView.
ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine, Joost Frieling, Bernd Wagner, Martin Melles, Volker Wennrich, Tamsin A. Mather, Stuart A. Robinson, David M. Pyle   +7 more
wiley   +1 more source

Puna Geothermal Venture well KS-1 [PDF]

, 1990
Puna Geothermal Venture quarterly well reports 1A and Kapoho State 2.
Puna Geothermal Venture
core   +1 more source

Health risk assessment of heavy metal accumulation in fruits exposed to geothermal waters: a case study and global implications

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND The present study investigated the potential health risks of heavy metals (HMs) in the fruits and leaves of mulberry and sour cherry trees exposed to water from Sivas geothermal basin (Turkey). RESULTS The target HMs were ranked according to their hazard index as: Cd < Pb < Zn < Cu < Ni < Mn < Cr. The total hazard index for mulberry
E Işıl Arslan Topal, Murat Topal, Erdal Çelik, Erdal Öbek   +3 more
wiley   +1 more source