Results 101 to 110 of about 21,047 (239)

Geochemical characteristics of titanite and U-Pb age of garnet from mineral mines of the Southern Urals

Записки Горного института
Mineralogical-geochemical (SIMS method) study of titanite and geochronological (ID-TIMS method) study of garnets from mineral mines of the Southern Urals has been carried out. The mineral associations containing titanite belong to four contrasting types:
Vladislav S. Stativko, Anton B. Kuznetsov, Vadim V. Smolensky, Nailya G. Rizvanova, Nadezhda A. Sergeeva   +4 more
doaj  

Subglacial geology and palaeo flow of Pine Island Glacier from combining glacial erratics with geophysics

Communications Earth & Environment
Subglacial geology plays a key role in determining the rate of ice flow and sensitivity of the glacial system to atmospheric or ocean warming. However, bedrock geology is often poorly known because direct information from subglacial samples is extremely ...
Tom A. Jordan, Joanne S. Johnson, Teal R. Riley, Ethan Conrad, Andrew Carter   +4 more
doaj   +1 more source

The Mobility of Major and Trace Elements in EOC Minerals on Parent Chondrite Bodies

Geosciences
The combined EPMA and SIMS study of the geochemical features of olivine, low-Ca pyroxene and plagioclase in equilibrated ordinary chondrites (EOCs) has revealed the effect of thermal metamorphism on trace element concentrations in EOC silicate minerals ...
Kristina Sukhanova, Sergey Skublov
doaj   +1 more source

Paleoproterozoic Multiple Tectonothermal Events in the Longshoushan Area, Western North China Craton and Their Geological Implication: Evidence from Geochemistry, Zircon U–Pb Geochronology and Hf Isotopes

, 2018
The Alxa block is located in the southwestern margin of the North China Craton. The Paleoproterozoic tectonic evolution, crustal growth and tectonic affinity of the block remain unknown or controversial. The Longshoushan (LS) area is one of the few areas
Renyu Zeng, Jiandong Zhang, Xiancheng Mao, Lizhi Yang, Jianqing Lai, Richard C. BAYLESS, Bin Li   +6 more
core   +1 more source

U-Pb Geochronology of Fersmite: Potential Time Constraints on Magnesite Formation, Sparry Dolomitisation, and MVT Pb-Zn Mineralisation in SE British Columbia, Canada

Fersmite ([Ca,Ce,Na][Nb,Ta,Ti]2[O,OH,F]6) from the Mount Brussilof magnesite deposit, British Columbia, Canada occurs as accessory brittle, black, submetallic to vitreous lustre, acicular to platy crystals up to 2 cm long, developed in sparry dolomite ...
George J. Simandl, Matthew I. Leybourne, Andrew M. McDonald, Douglas Archibald, Joseph A. Petrus, Alexander Voinot, Carlee Akam, Suzanne Paradis   +7 more
core   +1 more source

Pseudorutile-leucoxene-quartz ores of Timan ‒ a new genetic type of titanium raw materials: prospects for industrial development

Georesursy
The two largest deposits of Russia – Yaregskoye and Pizhemskoye belong to the same genetic type; hydrothermal-metamorphic indigenous deposits. They are located in the same Timan structure at a distance of no more than 230 km from each other. According to
A. B. Makeyev, S. G. Skublov, O. L. Galankina, E. A. Vasiliev, A. O. Krasotkina   +4 more
doaj   +1 more source

Advances in Human Mass Balance Studies: An IQ Consortium Perspective on Current Practices and Emerging Trends

Clinical Pharmacology &Therapeutics, Volume 120, Issue 1, Page 43-54, July 2026.
Human radiolabeled mass balance studies are crucial for comprehensively characterizing the absorption, distribution, metabolism, and excretion (ADME) of investigational drugs, providing essential data for drug development, regulatory evaluation, and product labeling.
Jason Boer, Ellen Cannady, Filip Cuyckens, Ulrike Glaenzel, Camille Granvil, Felix Huth, Alexander D. James, Wenying Li, Céline Veau, Graeme Young, Qin Yue, Gregory S. Walker, Upendra A. Argikar, Jonathan N. Bauman, Cathy Cantalloube, Yu‐Luan Chen, Ping Kang, Patricia Moliner, Mette L. Pedersen, Isabel Piel, Simone Schadt, Hanno Schieferstein, Julia Suchomel, Shuai Wang, S. Cyrus Khojasteh   +24 more
wiley   +1 more source

Inferences of Source Lithologies for Chicxulub Microtektites Using a Bayesian Approach

Geochemistry, Geophysics, Geosystems
The Chicxulub impact on the Yucatán Peninsula at the Cretaceous‐Paleogene boundary (KPB) was a likely contributor to the end‐Cretaceous mass extinction.
Jack Carter, Paolo Sanchez, Anthony J. Fuentes, Paul R. Renne, Dale H. Burns, Hermann D. Bermúdez   +5 more
doaj   +1 more source

Late Carboniferous Paleomagnetism From North Qiangtang Block Reveals a Multibranched Paleo‐Tethys Ocean

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The North Qiangtang Block occupies a pivotal position within the eastern Tethyan realm, and its paleogeographic reconstruction is critical for constraining Tethyan geometry and evolution. However, its Late Paleozoic paleogeography and Paleo‐Tethyan Ocean–continent configuration remain controversial due to limited reliable age‐constrained ...
Jiahui Zhang, Xin Cheng, Zhongshan Shen, Daniel Pastor‐Galán, Bitian Wei, Longyun Xing, Dongmeng Zhang, Nan Jiang, Mengting Zhong, Shuqi Lan, Muhammad Rizwan, Chenglong Deng, Hanning Wu   +12 more
wiley   +1 more source

Geological processes shaping freshwater biodiversity: a synthesis of global evidence

Biological Reviews, Volume 101, Issue 3, Page 1568-1581, June 2026.
ABSTRACT Recent genomic data highlight the key roles of geological processes in shaping the diversification and biogeography of freshwater lineages. Specifically, physical processes such as tectonic uplift, erosion, glaciation, lake formation, and sea‐level fluctuation contribute extensively to the evolution of biotic diversity within and among ...
Jonathan M. Waters, Christopher P. Burridge, David Craw, James S. Albert   +3 more
wiley   +1 more source