Formation Parameters of High-Pressure Minerals in the Dhofar 717 and 864 Chondrite Meteorites. / Litasov, K. D.; Badyukov, D. D.; Pokhilenko, N. P.
In: Doklady Earth Sciences, Vol. 485, No. 1, 01.03.2019, p. 327-330.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Formation Parameters of High-Pressure Minerals in the Dhofar 717 and 864 Chondrite Meteorites
AU - Litasov, K. D.
AU - Badyukov, D. D.
AU - Pokhilenko, N. P.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - This paper presents the results of a Raman spectroscopic study of shock melt veins in L6 chondritic meteorites Dhofar 717 and 864, and conclusions about the P–T parameters recorded in these meteorites after the impact event. The primary minerals of the host chondrite include olivine, orthopyroxene, clinopyroxene, plagioclase, chromite, phosphates, troilite, and kamasite. Shock melt veins up to 1 cm thick contain fragments of the high-pressure minerals ringwoodite, wadsleyite, majorite, akimotoite, jadeite, lingunite, and tuite and quenched melt consisting of majorite, ringwoodite, troilite, and kamasite. The mineral associations of the Dhofar 717 and 864 chondrites indicate high peak PT parameters of the impact in the region of stability of majorite (>20 GPa and >2500 K) and bridgmanite (>25 GPa and >2500 K). The presence of lingunite also directly indicates a peak pressure in the area of stability of the bridgmanite.
AB - This paper presents the results of a Raman spectroscopic study of shock melt veins in L6 chondritic meteorites Dhofar 717 and 864, and conclusions about the P–T parameters recorded in these meteorites after the impact event. The primary minerals of the host chondrite include olivine, orthopyroxene, clinopyroxene, plagioclase, chromite, phosphates, troilite, and kamasite. Shock melt veins up to 1 cm thick contain fragments of the high-pressure minerals ringwoodite, wadsleyite, majorite, akimotoite, jadeite, lingunite, and tuite and quenched melt consisting of majorite, ringwoodite, troilite, and kamasite. The mineral associations of the Dhofar 717 and 864 chondrites indicate high peak PT parameters of the impact in the region of stability of majorite (>20 GPa and >2500 K) and bridgmanite (>25 GPa and >2500 K). The presence of lingunite also directly indicates a peak pressure in the area of stability of the bridgmanite.
UR - http://www.scopus.com/inward/record.url?scp=85066476684&partnerID=8YFLogxK
U2 - 10.1134/S1028334X19030322
DO - 10.1134/S1028334X19030322
M3 - Article
AN - SCOPUS:85066476684
VL - 485
SP - 327
EP - 330
JO - Doklady Earth Sciences
JF - Doklady Earth Sciences
SN - 1028-334X
IS - 1
ER -
ID: 25754680