Zobrazeno 1 - 10
of 20
pro vyhledávání: '"B. M. Bansal"'
Publikováno v:
Geochimica et Cosmochimica Acta. 61:2119-2138
Monomict eucrites Y792510 and Y791186 of pyroxene metamorphic type 6 contain areas of recrystallized mesostasis and granoblastic pyroxene. Textural comparisons suggest that the mesostasis areas in these eucrites originally resembled analogous areas i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43ecf8bd855a27959e2a5f2cdb6dc374
https://doi.org/10.1016/s0016-7037(97)00059-8
https://doi.org/10.1016/s0016-7037(97)00059-8
Publikováno v:
Meteoritics. 29:872-885
Neodymium, stontium, and chromium isotopic studies of the LEW86010 angrite established its absolute age and the formation interval between its crystallization and condensation of Allende CAIs from the solar nebula. Pyroxene and phosphate were found t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05a957c7a3bf8a924d5c7fef87c03d74
https://doi.org/10.1111/j.1945-5100.1994.tb01102.x
https://doi.org/10.1111/j.1945-5100.1994.tb01102.x
Autor:
L. E. Nyquist, T. Aoyama, Henry Wiesmann, Donald D. Bogard, B. M. Bansal, C.-Y. Shih, Hiroshi Takeda, Hiroshi Mori
Publikováno v:
Geochimica et Cosmochimica Acta. 57:2111-2121
Compared to most other Yamato polymict eucrites, Yamato Y792769 eucrite includes fewer and smaller eucritic clasts with homogenized pyroxenes, and its fine-grained matrix is shock-compacted and sintered. In this work, the relationships between the An
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c8a8d0baeb537eb86dcb38c912a6f6f
https://doi.org/10.1016/0016-7037(93)90097-g
https://doi.org/10.1016/0016-7037(93)90097-g
Publikováno v:
Geochimica et Cosmochimica Acta. 57:915-931
The Rb-Sr and Sm-Nd isotopic ages were determined for two Apollo 15 pristine lunar breccias, 15445 and 15455, collected near Spur Crater on the Apennine Front. The analyses of mineral separates from two norite samples in breccia 15445 showed that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b04513acea9e15dcb5a124357cfb1a0d
https://doi.org/10.1016/0016-7037(93)90178-y
https://doi.org/10.1016/0016-7037(93)90178-y
Publikováno v:
Earth and Planetary Science Letters. 108:203-215
The paper determines Sm-Nd and Rb-Sr mineral isochrons for an Apollo 17 KREEP (pigeonite) basalt clast from breccia 72275 collected from Boulder 1, Station 2 in the Valley of Taurus-Littrow. Sm-Nd analyses of the basalt yield a precise mineral isochr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac911006433eecdec605770870b91d0a
https://doi.org/10.1016/0012-821x(92)90023-o
https://doi.org/10.1016/0012-821x(92)90023-o
Publikováno v:
Geochimica et Cosmochimica Acta. 54:2195-2206
The age of the 'large' eucrite clast from the Bholghati howardite (described by Reid et al., 1990) was estimated from Ar-39/Ar-40 age data obtained for a portion of this clast. The Ar-39/Ar-40 age and isotopic systematics of the clast are found to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d82a7d4c08a24b9f73bdf689121f05c9
https://doi.org/10.1016/0016-7037(90)90045-m
https://doi.org/10.1016/0016-7037(90)90045-m
Autor:
A. Albrecht, Henry Wiesmann, S. Vogt, Gregory F. Herzog, D. H. Garrison, Donald D. Bogard, B. M. Bansal, Jacob Klein, L. E. Nyquist
Publikováno v:
Journal of Geophysical Research. 100:9401
We have measured significant concentrations of 36Cl, 41Ca, 36Ar from decay of 36Cl, and 150Sm produced from the capture of thermalized neutrons in the large Chico L6 chondrite. Activities of 36Cl and 41Ca, corrected for a high-energy spallogenic comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3072b37b41d5a43f1c4f52292ee70266
https://doi.org/10.1029/95je00663
https://doi.org/10.1029/95je00663
Publikováno v:
Geochimica et Cosmochimica Acta. 51:3241-3254
Internal (mineral) Rb-Sr isochrons were determined for six Apollo 14 mare basalts of lunar breccia 14321. The ages of these fragments, which represent the time of crystallization of the respective mafic lavas, range from about 4.05 to 4.24, and, poss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d79c3d259d47214190d5521f2b23af7e
https://doi.org/10.1016/0016-7037(87)90132-3
https://doi.org/10.1016/0016-7037(87)90132-3
Publikováno v:
Geochimica et Cosmochimica Acta. 43:1057-1074
The age of the Shergotty achondrite is determined by Rb-Sr isotope analysis and the metamorphic resetting of isochron ages, which is presumed to have occurred during a shock event in the history of the meteorite, is discussed. The isochron best fitti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7810914219d77bdbef1bcb17a357e7de
https://doi.org/10.1016/0016-7037(79)90094-2
https://doi.org/10.1016/0016-7037(79)90094-2
Autor:
L.C. Laul, C.-Y. Shih, L. E. Nyquist, John W. Shervais, Lawrence A. Taylor, J.L. Wooden, Robert H. Hunter, B. M. Bansal
Publikováno v:
Earth and Planetary Science Letters. 66:33-47
The discovery of a 4.23 AE, low-Ti composition mare basalt from the Fra Mauro Formation has challenged the hypothesis that the plutonism of the lunar highlands and the mare-type volcanism are two separate problems in both space and time. Attention is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c806056f7bf3d2dabb41b04d79899a7d
https://doi.org/10.1016/0012-821x(83)90124-3
https://doi.org/10.1016/0012-821x(83)90124-3