Secular change of tectonic setting in the Archean Takanen greenstone belt, northeastern Karelia Province, Fennoscandian Shield [PDF]
Bulletin of the Geological Society of Finland, 2023 The target of this study is the Takanen greenstone belt (TGB), a small 11-km-long and east-west oriented supracrustal belt in the northern Lentua complex of the Western Karelia Subprovince (eastern Finland).
Ville Järvinen +6 more
doaj +1 more source
Геодинамика и тектонофизика, 2019 The article is focused on the morphology, trace element composition, U‐Pb and Lu‐Hf systems in zircon in high‐Mg diorite of the Chelyabinsk granitoid massif.
T. A. Osipova +2 more
doaj +1 more source
Late fluid flow in a primitive asteroid revealed by Lu–Hf isotopes in Ryugu
NatureCarbonaceous asteroids are the source of the most primitive meteorites1 and represent leftover planetesimals that formed from ice and dust in the outer Solar System and may have delivered volatiles to the terrestrial planets2-5. Understanding the aqueous activity of asteroids is key to deciphering their thermal, chemical and orbital evolution, with ...
Tsuyoshi Iizuka +86 more
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Revista Mexicana de Ciencias Geológicas, 2017 The Lu-Hf isotope system is not only an important geochrono- meter but also a powerful tool for petrogenetic studies. To determine reliable analytical results of this system from rock and mineral samples, a protocol is established that includes ...
Reneé González-Guzmán +3 more
doaj +1 more source
Geochronology and Lu-Hf isotope of mafic-intermediate rocks from SW Salmas: implication for Neoproterozoic juvenile melts [PDF]
پترولوژی, 2018 The southwest Salmas metamorphosed mafic-intermediate intrusive rocks are located in Sanandaj-Sirjan zone in NW of Iran. The metamorphosed intrusives rocks comprise metagabbro and metadiorite that intruded the Precambrian metamorphosed volcanic ...
Fahime kozekoulani +2 more
doaj +1 more source
Lithosphere, 2022 ~3.5-2.8 Ga granitoids from the Pilbara Craton in Western Australia are one of the most ancient and best-preserved records of early processes of continental crust generation. A number of recent studies have focused on the nature of the mantle source from
Anda Buzenchi +3 more
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A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
Geophysical Monograph Series, Page 47-54., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
wiley +1 more source
Frontiers in Earth Science, 2022 Radiogenic isotopes of granitoids are widely applied to fingerprint the source of granitoids and study the magma mingling and assimilation processes, aiming to decipher the planetary differentiation.
Lei Yang +8 more
doaj +1 more source
OneDZ: a global detrital zircon database and implications for constructing giant geoscience database [PDF]
Earth System Science DataThe amount of detrital zircon U-Pb geochronology data and Lu-Hf isotopic data has doubled in the past two decades with the continuous improvement of analytical methods, and has developed into the most closely integrated research field in earth science ...
K. Li +23 more
doaj +1 more source
Lu–Hf isotope systematics of fossil biogenic apatite and their effects on geochronology
Geochimica et Cosmochimica Acta, 2013 Abstract Reliable methods for direct dating of biogenic apatite from pre-Pleistocene fossils are currently not available, and recent attempts using the Lu–Hf decay system yielded highly inaccurate ages for both bones and teeth. The geological processes accounting for this poor accuracy of Lu–Hf chronometry are not yet understood.
Herwartz, Daniel +5 more
openaire +2 more sources