Monazite geochronology in melt-percolated UHP meta-granitoids: An example from the Erzgebirge continental subduction wedge, Bohemian Massif
نویسندگان
چکیده
منابع مشابه
The contorted New England Orogen (eastern Australia): New evidence from UPb geochronology of early Permian granitoids
[1] A series of sharp bends (oroclines) are recognized in the Paleozoic to early Mesozoic New England Orogen of eastern Australia. The exact geometry and origin of these bends is obscured by voluminous magmatism and is still debated. Here we present zircon U-Pb ages that confirm the lateral continuation of early Permian (296–288 Ma) granitoids and shed new light on the oroclinal structure. Orog...
متن کاملMulti-step TIMS and CA-TIMS monazite U–Pb geochronology
Multi-step chemical abrasion thermal ionization mass spectrometry (CA-TIMS) methods were developed for monazite using six samples that vary in composition and age—Amelia, Jefferson County, Burke, Elk Mountain, 554 and Madagascar. To evaluate whether the multi-step CA-TIMS approach reveals complexities in either age or composition that might be masked by single-step analysis, this study presents...
متن کاملDetermination of Authentic Formulae for Seismic Acceleration Decay in the Bohemian Massif
Two seismic profiles were established for experimental determination of a decrease of the maximum ground motion acceleration amplitudes as a function of the distance and magnitude of seismic sources. Profile I (direction N-S) was equipped by four accelerometers in the period from 2003 July 1 till 2004 December 31. At present, five additional seismometers are dislocated along the Profile II (NW-...
متن کاملDeep subduction of the Seve Nappe Complex in the Scandinavian Caledonides
Klonowska, I. 2017. Deep subduction of the Seve Nappe Complex in the Scandinavian Caledonides. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1595. 63 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0139-6. This thesis seeks to improve our understanding of the processes involved in continental collision zones, with a particular f...
متن کاملGeochemistry and Thermobarometry of Bazman volcanic rocks, An example of active continental margin volcano
Bazman volcano is located in the Makran-Chaghi magmatic arc in southeastern Iran. Many studies have been done on this volcano, especially of petrology such as: Biabangard and Mollazadehbarvati, 2017; Berberian and Berberian, 1982; Mohammadi, 2005; Sahandi et al., 2010; Schmidt and Dabiri, 2019; Firoozkoohi, et al., 2017; Ghodsi et al., 2006; Glamghash et al., 2015; Karimpour et al., 2012; St...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Geology
سال: 2021
ISSN: 0009-2541
DOI: 10.1016/j.chemgeo.2020.119919