 | | Journal (article/letter/editorial) | | clusters in Guinea, two Jurassic-aged clusters in Sierra Leone, and in Liberia two clusters of unknown age...Banankoro cluster pipes in Guinea, the Koidu pipes in Sierra Leone and small pipes in the Weasua cluster...Jurassic kimberlites are considered to represent one province of kimberlites that track from older bodies in...to progressively younger kimberlites in Sierra Leone (Koidu, 146 Ma and Tongo, 140 Ma). The scarcity...Geochronology; Petrography; Mineral chemistry; Sierra Leone; Guinea; Liberia 1. Introduction The kimberlites |  | | Book | | F . R . Boyd 75 (4) The Koidu K i m b e r l i t e Complex, S i e r r a Leone: G e o l o g i c a l S e...405 (10) K i m b e r l i t i c magmatism i n the eastern u n i t e d s t a t e s : r e l a t i o n s h i...a r a c t e r o f a given k i m b e r l i t e province to be considered and compared to o t h e r k i...surrounding the Colorado-Wyoming State Line Kimber lite District. The N-S t r e n d o f the Front Range i n Colorado...e n d i n g mountain ranges. The State Line District northwest o f the V i r g i n i a Dale area i |
|
