53Mn-53Cr systematics of sphalerite in enstatite chondrites

Jens Hopp,Julian-Christopher Storck,Thomas Ludwig,Smail Mostefaoui,Rainer Altherr,Ulrich Ott,Hans-Peter Meyer,Mario Trieloff

Geochimica et Cosmochimica Acta（2021）

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摘要

•Mn-Cr systematics of sphalerite in five E chondrites was established by SIMS.•Mn-Cr system appears affected by weathering processes in MAC 88136.•Other disturbances could relate to complex thermal histories.•Substantial variation in initial 53Mn/55Mn still limits chronologic applications.•Chronologic potential is recognizable but requires additional research.

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关键词

Enstatite chondrites,Sphalerite,53Mn-53Cr systematics,SIMS spot analyses

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