Results 81 to 90 of about 189,480 (262)

U-Pb zircon age of the youngest magmatic activity in the High Tatra granites Central Western Carpathians [PDF]

, 2013
Detailed cathodoluminescence (CL) imaging of zircon crystals, coupled with Laser Abla-tion Multi-Collector Inductively Coupled Plasma Mass Spectrometry (LA-MC-ICP-MS) U-Pb zircon dating was used to develop new insights into the evolution of granitoids ...
Burda, Jolanta, Urs Klötzli, Jolanta Burda, Gawęda, Aleksandra, Klotzli, U., Aleksandra Gawęda   +5 more
core   +1 more source

Allanite U–Pb step-leaching ages of metapelites in the Imjingang belt, central Korea

Journal of Analytical Science and Technology
Background Allanite is a LREE-rich epidote-group mineral, and a potential chronometer for the greenschist-facies metamorphism. However, owing to the metamict nature of allanite, it is extremely difficult to secure sufficient amounts of mineral separates ...
Seunghee Han, Yoonsup Kim, Taehoon Kim, Mi Jung Lee   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Discovery of mafic impact melt in the center of the Vredefort dome:archetype for continental residua of early Earth cratering?

, 2014
Melting by impact heating is thought to have been a significant process in the modification of early planetary crusts; however, crustally derived melt bodies in ancient terrestrial crust are frequently presumed to be absent due to erosion.
Barker, I. R., Moser, D. E., Darling, James, Darling, J. R., Bowman, J. R., Cupelli, C. L., Dhuime, B.   +6 more
core   +1 more source

Impacts of Common Lead on Apatite U-Pb Geochronology by LA-ICP-MS: Assessment and Correction Strategies

Yankuang ceshi
Apatite is a widespread U-bearing mineral in igneous, metamorphic, and sedimentary rocks. U-Pb geochronology of apatite can provide significant information for constraining magmatic evolution processes and tracing provenance.
Tao LUO, Hanlin WANG, Songbai ZHU, Liyuan QING, Zhaochu HU   +4 more
doaj   +1 more source

U-Pb zircon age of the pegmatoid of the Muong Lat complex

Science and Technology Development Journal - Natural Sciences, 2019
Muong Lat granitoid complex located in Thanh Hoa province. It is composed of two mica granite, aplite and pegmatoid. Rock forming minerals include mainly K-feldspar, quartz biotite and muscovite. Crystallization age of pegmatite in Muong Lat body is determined by U-Pb zircon LA-ICP-MS method.
Pham Trung Hieu, Tran Van Thanh
openaire   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Chemical U-Th-Pb dating of monazite by 3D-Micro X-ray fluorescence analysis with synchrotron radiation

, 2009
A confocal set-up for three-dimensional (3D) micro X-ray fluorescence (micro-XRF) was used at the mySpot beamline at BESSY II, which allows compositional depth profiling for various applications.
Bousquet, Romain, Kanngiesser, Birgit, Schmitz, Sylvia, Berger, Alfons, Wilke, Max, Wilke, Max (Prof. Dr. rer. nat.), Schefer, Senecio, Schmitz, Susanne, Schefer, Seneca, Malzer, Wolfgang, Moeller, Andreas, Möller, Andreas   +11 more
core   +1 more source

Integration of new zircon U–Pb ages with biostratigraphy to establish a high-precision age model of the Miocene Nakayama Formation on Sado Island in Central Japan

Progress in Earth and Planetary Science
The most common age constraint for the diatomaceous sediments is biostratigraphy of siliceous microfossils. Although biostratigraphy is a powerful tool to establish stratigraphy and correlate with sedimentary sequences in other sites, biostratigraphy ...
Jumpei Yoshioka, Kenji M. Matsuzaki, Sota Niki, Junichiro Kuroda, Takafumi Hirata   +4 more
doaj   +1 more source

U-Pb age characteristics of detrital zircon and provenance analysis of a Middle Miocene submarine fan in the Qiongdongnan Basin

地质科技通报
Objective The middle Miocene submarine fan in the Qiongdongnan Basin is an important target for natural gas exploration in the northern South China Sea.
Shengli GONG, Zhuoyu YAN, Baiqiang LI, Tongyao ZHANG, Turong WU, Junfeng PENG, Lei ZHENG, Dongfeng ZHANG, Xiangsheng HUANG, Chengfei LUO, Ren WANG   +10 more
doaj   +1 more source