Split-grain 40Ar/39Ar dating: Integrating temporal and geochemical data from crystal cargoes
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2017.03.005
Abstract: NERC is acknowledged for continued funding of AIF at SUERC, East Kilbride. This work was supported by an ETH research grant (ETH-05 13-2) and funds from Swiss National Science Foundation research grants (SNSF 200021-146268 and… read more here.
Keywords: split grain; grain 40ar; 39ar dating; dating integrating ... See more keywords
A comparison of geochronological methods commonly applied to kimberlites and related rocks: Three case studies from Finland
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2020.119899
Abstract: Abstract Despite their economic and scientific significance, the tectonic drivers that lead to the genesis of kimberlites and related rocks remain enigmatic. The presence of any spatio-temporal relationship(s) between the rift, drift and collision history… read more here.
Keywords: kimberlites related; comparison geochronological; methods commonly; 40ar 39ar ... See more keywords
Gas release systematics of mineral-hosted fluid inclusions during stepwise crushing: implications for 40Ar/39Ar geochronology of hydrothermal fluids
Sign Up to like & getrecommendations! Published in 2019 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2019.02.016
Abstract: Abstract 40Ar/39Ar stepwise crushing technique has become more important for dating hydrothermal fluids trapped in mineral-hosted fluid inclusions. However, understanding the gas release patterns and interpreting the 40Ar/39Ar dating results have remained challenging. Here we… read more here.
Keywords: gas; stepwise crushing; geochronology; systematics ... See more keywords
Cooling, exhumation, and deformation in the Hindu Kush, NW Pakistan: New constraints from preliminary 40Ar/39Ar and fission track analyses
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Asian Earth Sciences"
DOI: 10.1016/j.jseaes.2018.03.012
Abstract: Abstract Asian crust in the Hindu Kush region in northern Pakistan records a protracted history of rifting, subduction and collision not commonly preserved within the Himalaya. Because of this, it is key to understanding the… read more here.
Keywords: age; hindu kush; fission track; exhumation ... See more keywords
Recycling Argon through Metamorphic Reactions: the Record in Symplectites
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DOI: 10.1016/j.lithos.2017.11.028
Abstract: Abstract The 40Ar/39Ar ages of metamorphic micas that crystallized at high temperatures are commonly interpreted as cooling ages, with grains considered to have lost 40Ar via thermally-driven diffusion into the grain boundary network. Recently reported… read more here.
Keywords: reactions record; recycling argon; argon metamorphic; biotite plagioclase ... See more keywords
40Ar/39Ar dating of the Jiehe gold deposit in the Jiaodong Peninsula, eastern North China Craton: Implications for regional gold metallogeny
Sign Up to like & getrecommendations! Published in 2017 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2017.03.027
Abstract: Abstract The Jiehe gold deposit, containing a confirmed gold reserve of 34 tonnes (t), is a Jiaojia-type (disseminated/stockwork-style) gold deposit in Jiaodong Peninsula. Orebodies are hosted in the contact zone between the Jurassic Moshan biotite… read more here.
Keywords: gold deposit; jiehe gold; gold; metallogeny ... See more keywords
40Ar/39Ar age of cryptochron C2r.2r-1 as recorded in a lava sequence within the Ko'olau volcano (Hawaii, USA)
Sign Up to like & getrecommendations! Published in 2018 at "Quaternary Geochronology"
DOI: 10.1016/j.quageo.2017.10.005
Abstract: Abstract The 40 Ar/ 39 Ar method was used to refine the dating of a volcanic sequence drilled in the Ko'olau volcano which recorded a period of anomalously shallow inclinations. Previously, this sequence was dated… read more here.
Keywords: olau volcano; age; c2r; 40ar 39ar ... See more keywords
U–Th disequilibrium, (U–Th)/He and 40Ar/39Ar geochronology of distal Nisyros Kyra tephra deposits on Datça peninsula (SW Anatolia)
Sign Up to like & getrecommendations! Published in 2020 at "Quaternary Geochronology"
DOI: 10.1016/j.quageo.2019.101033
Abstract: Abstract Kyra is an important tephra unit for Nisyros pre-caldera stage due to a number of subunits with various compositions (basaltic andesite to dacite) and distal dispersion on surrounding Greek islands (Tilos and Chalki) and… read more here.
Keywords: tephra; pumice; kyra tephra; 40ar 39ar ... See more keywords
ESR/U-series and ESR dating of several Middle Pleistocene Italian sites: Comparison with 40Ar/39Ar chronology
Sign Up to like & getrecommendations! Published in 2021 at "Quaternary Geochronology"
DOI: 10.1016/j.quageo.2021.101151
Abstract: Abstract The stratigraphic sequences of numerous Palaeolithic sites of Central and Southern Italy, very rich in both archaeological and palaeontological remains, have also recorded Pleistocene volcanic events through volcanic ash deposits (tephra). They allow the… read more here.
Keywords: chronology; several middle; pleistocene; esr series ... See more keywords
Eurya stigmosa (Theaceae), a new and extinct record for the Calabrian stage of Madeira Island (Portugal): 40Ar/39Ar dating, palaeoecological and oceanic island palaeobiogeographical implications
Sign Up to like & getrecommendations! Published in 2019 at "Quaternary Science Reviews"
DOI: 10.1016/j.quascirev.2019.01.008
Abstract: Abstract The general dynamic model of oceanic island biogeography (GDM) predicts the immigration, speciation and extinction of terrestrial biota through geological time on oceanic islands. Additionally, the glacial-sensitive model of island biogeography (GSM) also predicts… read more here.
Keywords: island; eurya stigmosa; record; madeira ... See more keywords
Fault-gouge dating in the Southern Alps, New Zealand
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DOI: 10.1016/j.tecto.2017.08.007
Abstract: Abstract We report two 40Ar/39Ar illite ages from fault gouge directly above the current trace of the Alpine Fault in New Zealand at Gaunt Creek (1.36 ± 0.27 Ma) and Harold Creek (1.18 ± 0.47 Ma), and one 40Ar/39Ar illite age… read more here.
Keywords: fault; new zealand; southern alps; fault gouge ... See more keywords