Results 101 to 110 of about 16,800 (234)

⁸⁷Sr/⁸⁶Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales [PDF]

, 2004
New calcite ⁸⁷Sr/⁸⁶Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater <sup>
Ellam, R.M., Fallick, A.E., Graham, C.M., Thomas, C.W.   +3 more
core   +1 more source

Connecting the Atlantic Meridional Overturning Circulation to the Southern Ocean Following the Closure of Equatorial Seaways During the Cenozoic

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Global ocean circulation regulates climate and has undergone significant changes over the Cenozoic. Today, the Atlantic Meridional Overturning Circulation (AMOC) is driven by North Atlantic Deep Water (NADW) formation and Southern Ocean upwelling.
Erwan Pineau, Camille Lique, David Ferreira, Thierry Huck, Jean‐Baptiste Ladant, Emma Fabre, Jeanne Millot‐Weil, Yannick Donnadieu   +7 more
wiley   +1 more source

Recent Development in Radiogenic Isotope Geology

Journal of Geography (Chigaku Zasshi), 1964
Several topics of the research in radiogenic isotope geology are briefly reviewed. This short review consists of four parts; (i) recent development in the instrumentation, (ii) in the methodology, (iii) topics on the mantle-crustal evolution on the basis of Pb, Sr isotope growth and (iv) geochronology of ocean floors.
openaire   +2 more sources

Some progress on understanding the Phanerozoic granitoids in China

China Geology, 2018
: There are large volumes of the Phanerozoic granitoid rocks in China and neighboring areas. In recent years, numerous new and precise U-Pb zircon ages have been published for these granitoids, and define many important magmatic events, such as ca.
Tao Wang, Ying Tong, Xiao-xia Wang, Jian-ren Mao, Hong-rui Zhang, He Huang, Shan Li, Lei Guo, Jian-jun Zhang   +8 more
doaj   +1 more source

The Fine Structure Constant and Habitable Planets

, 2016
We use the existence of habitable planets to impose anthropic requirements on the fine structure constant, $\alpha$. To this effect, we present two considerations that restrict its value to be very near the one observed.
Sandora, McCullen
core   +1 more source

Provenance of clay-sized detrital sediments in the North Sea and the Skagerrak region based on radiogenic Nd-Sr-Hf isotopes and clay mineral compositions: assessing the impact of coastal and seabed erosion

Frontiers in Marine Science
The Skagerrak basin represents the main sink area for fine-grained sediment in the North Sea region and constitutes a natural deposition center for sediments that are supplied from the Atlantic, the Baltic Sea and the surrounding continental margins and ...
Nina Lenz, Timo Spiegel, Ed Hathorne, Klaus Wallmann, Anton Eisenhauer, Martin Frank   +5 more
doaj   +1 more source

Geo-neutrinos

, 2013
We review a new interdisciplinary field between Geology and Physics: the study of the Earth's geo-neutrino flux. We describe competing models for the composition of the Earth, present geological insights into the make up of the continental and oceanic ...
Bellini, G., Ianni, A., Ludhova, L., Mantovani, F., McDonough, W. F.   +4 more
core   +1 more source

Heterogeneous Mantle Metasomatism Controlled by Continental Subduction: Evidence From Post‐Collisional Mafic Rocks in the North Qaidam Orogen

Geochemistry, Geophysics, Geosystems
Post‐collisional mafic rocks not only record geodynamic processes at the end of the orogenic cycle but also retain various clues regarding preceding interactions between subducted slabs and mantle wedges.
Xiangyu Gao, Shengyao Yu, Yu Qi, Lintao Wang, Chuanzhi Li, Xiaocong Jiang, Xingzhou Jiang, Yang Yu   +7 more
doaj   +1 more source

Modulation of the northward penetration of Antarctica intermediate waters into the eastern equatorial Indian Ocean under glacial and interglacial conditions

Scientific Reports
The Indo-Pacific warm pool is the warmest and most dynamic ocean–atmosphere-climate system on Earth and was subject to significant climate changes during the Pleistocene glacial-interglacial transitions.
Sandrine Le Houedec, Maxime Tremblin, Amaury Champion, Elias Samankassou   +3 more
doaj   +1 more source

Multi-isotope characteristics and residence time of saline geothermal waters in the coastal area of Xiamen bay, southeast China

Journal of Hydrology: Regional Studies
Study region: Xiamen bay, China: Study focus: The formation and circulation of saline geothermal water in coastal areas are crucial for the application of geothermal resources; however, its residence time and interaction with seawater are poorly ...
Jing Li, Chunlei Liu, Shengwei Cao, Xiaomin Lin, Qingshan Ma, Yasong Li   +5 more
doaj   +1 more source