caa a22 4500 386402647 CHVBK 20180307112205.0 cr unu---uuuuu 161130e198905 xx s 000 0 eng 10.1017/S0016756800022354 doi S0016756800022354 pii (NATIONALLICENCE)cambridge-10.1017/S0016756800022354 Thomson B. Upper Kennerty Mills Cottage, Kennerty Mills Road, Peterculter, Aberdeen AB1 OLR, Scotland, U.K. B1 subdivisions in thin komatiites at Kambalda, Western Australia [Elektronische Daten] [B. Thomson] B1 subdivisions are narrow foliated zones of stubby, skeletal olivine blades, situated at the top of the granular olivine cumulates (B2) in ponded komatiite lavas. They developed at a late stage in pond crystallization as a result of compaction-related circulation of intercumulus liquids through and along the top of the cumulates. The total thickness of a B1 and its degree of blade parallelism are related to lateral position within ponded lavas. The deeper, hotter and longer-lived core regions generated a thick B1 with a high degree of blade parallelism (ordered B1), whereas the shallower, peripheral regions produced a narrow B1 with a poor degree of blade parallelism (disordered B1), or failed to develop one at all. Copyright © Cambridge University Press 1989 Geological Magazine Cambridge University Press 126/3(1989-05), 263-270 0016-7568 126:3<263 1989 126 GEO https://doi.org/10.1017/S0016756800022354 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0016756800022354 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Thomson B. Upper Kennerty Mills Cottage, Kennerty Mills Road, Peterculter, Aberdeen AB1 OLR, Scotland, U.K NATIONALLICENCE 773 0- Geological Magazine Cambridge University Press 126/3(1989-05), 263-270 0016-7568 126:3<263 1989 126 GEO CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge