Cosmogenic effects in Mbale, L5/6 chondrite
نویسندگان
چکیده
منابع مشابه
Cosmogenic Radionuclides in Chondrite Shower from Otway
Introduction. In the 2003/04 season, the ANSMET team recovered 83 meteorites in an elliptical area of 1.6 x 0.2 km from a blue ice field near Otway Massif in the Grosvenor Mountains (Fig. 1). The size distribution of the meteorites within this area suggests they are a well preserved strewnfield, with the largest mass (29 kg) on the East end and the smallest masses (~100 g) on the West end [1]. ...
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Introduction: The 182 Hf– 182 W decay system (t 1/2 =9 My) is useful to date early Solar System processes, notably metal-silicate differentiation [1-10]. Hf-W systematics of refractory inclusions indicate that these objects formed with an initial 182 Hf/ 180 Hf ratio of ~1×10-4 and ε 182 W of –3.47 ± 0.20 [6]. Recent high precision studies revealed negative ε 182 W values relative to CAIs for s...
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Muller, and P. R. Renne, Department of Physics, University of California, Berkeley, California 94720, USA, Presently at Chicago Center for Cosmochemistry and Department of Geophysical Sciences, University of Chicago, Chicago, Illinois 60637, USA ([email protected]), Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA, Berkeley Geochronology Center, 2755 Ridge Road, ...
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ژورنال
عنوان ژورنال: Meteoritics & Planetary Science
سال: 1998
ISSN: 1086-9379,1945-5100
DOI: 10.1111/j.1945-5100.1998.tb01315.x