Origin of the Kootenay Lake Metamorphic High, Southeastern British Columbia
نویسندگان
چکیده
A nar row, elon gate re gion of an oma lously high meta mor phic grade runs par al lel to Kootenay Lake, in the cen tral part of the Kootenay Arc, south east ern Brit ish Co lum bia. Meta mor phic grade ranges from the chlorite/bi o tite zones on the flanks to the sillimanite+K-feld spar zone in the cen tre of the high. In this pa per, we pres ent a sum mary of struc tural, meta mor phic and geo chron ol ogi cal data and dis cuss the or i gin of this pat tern. It is sug gested that the meta mor phic high re sults from dif fer en tial ex hu ma tion dur ing early Tertiary extensional deformation.
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