Geology of the Clinton Creek asbestos deposit, Yukon Territory
department or school: Science, Faculty of
department or school: Earth, Ocean and Atmospheric Sciences, Department of
data provider: DSpace
degree campus: UBCV
creator: Htoon, Myat
issued: 2010-03-02T23:01:17Z
issued: 1979
related degree: Master of Science - MSc
degree grantor: University of British Columbia
description: Clinton Creek asbestos deposit is situated at 77 kilometres northwest of Dawson City on Clinton Creek in Yukon Territory. Yukon Metamorphic Complex of Ordovician to Devonian age (470 Ma, Rb-Sr date) covers most of the Clinton Creek area. The most prominent metamorphism of the area occurred in Permian time (245 to 278 Ma, K-Ar dates). Based on intensity and style of deformation of ultramafic bodies and country rocks it is suggested that the ultramafic rocks were emplaced probably during the Permian period. Tintina fault is a weak zone along which the alpine ultramafic bodies of Clinton Creek and probably some of the others along and close to the Tintina Trench were tectonically emplaced. These were later folded and metamorphosed with the country rocks. During latest Cretaceous-earliest Tertiary time (64.9 Ma, K-Ar date) the area was intruded by acid intrusive rocks. The youngest undeformed and fresh basalt is probably of Selkirk volcanics equivalent. Three prominent phases of deformation were delineated. Probably the oldest and most complex phase occurred during the Permian, along with the initial movement of the Tintina fault. Small, tight, isoclinal folds are characteristics of this phase. The structural trend (300* to 315') is roughly parallel to the direction of the Tintina Trench. Due to later deformations changes in direction of fold axes of this phase (190* to 350") is common. The second phase of deformation gave rise to large recumbent folds with trends varying from 270" to 290' with southerly vergence. Third phase of deformation gave rise to antiform structure of regional scale. The Porcupine and Snow Shoe ultramafic bodies are mined for chrysotiile asbestos. A few other ultramafic bodies contain appreciable amount of chrysotile-fibre but not of adequate quantity to be mined. Most of the ultramafic bodies are sheared or massive, and are devoid of known chrysotile-fibre. In general, if serpentinization is less than 75 percent there is no chance of commercial …
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/21374
note: CO GEOLOGY OF THE CLINTON CREEK ASBESTOS DEPOSIT, YUKON TERRITORY by M Y A T | H T O O N B . S c , Rangoon Ar t s and Sciences U n i v e r s i t y , 1967 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENT FOR THE DEGREE OF MASTER OF SCIENCE i n THE FACULTY OF GRADUATE STUDIES THE DEPARTMENT OF GEOLOGICAL SCIENCES We accept t h i s t h e s i s as conforming to the req u i r e d standard T H E U N I V E R S I T Y OF B R I T I S H C O L U M B I A March, 1979 0 Myat Htoon, 1979 I n p r e s e n t i n g t h i s t h e s i s i n p a r t i a l f u l f i l m e n t o f t h e r e q u i r e m e n t s f o r an a d v a n c e d d e g r e e a t t h e U n i v e r s i t y o f B r i t i s h C o l u m b i a , I a g r e e t h a t t h e L i b r a r y s h a l l make i t f r e e l y a v a i l a b l e f o r r e f e r e n c e a n d s t u d y . I f u r t h e r a g r e e t h a t p e r m i s s i o n f o r e x t e n s i v e c o p y i n g o f t h i s t h e s i s f o r s c h o l a r l y p u r p o s e s may be g r a n t e d by t h e Head o f my D e p a r t m e n t o r by h i s r e p r e s e n t a t i v e s . I t i s u n d e r s t o o d t h a t c o p y i n g o r p u b l i c a t i o n o f t h i s t h e s i s f o r f i n a n c i a l g a i n s h a l l n o t be a l l o w e d w i t h o u t my w r i t t e n p e r m i s s i o n . D e p a r t m e n t o f G e o l o g i c a l S c i e n c e s The U n i v e r s i t y o f B r i t i s h C o l u m b i a 2075 W e s b r o o k P l a c e V a n c o u v e r , C a n a d a V6T 1W5 March, 23rd, 19 79. i i ABSTRACT C l i n t o n Creek asbestos deposit i s s i t u a t e d at 77 k i l o m e t r e s northwest of Dawson C i t y on C l i n t o n Creek i n Yukon T e r r i t o r y . Yukon Metamorphic Complex of Ordovician to Devonian age (470 Ma, Rb-Sr date) covers most of the C l i n t o n Creek area. The most prominent metamorphism of the area occurred i n Permian time (245 to 278 Ma, K-Ar dates). Based on i n t e n s i t y and s t y l e of deformation of u l t r a m a …
has type: Thesis/Dissertation
is shown at: 10.14288/1.0052868
language: eng
degree discipline: Geological Sciences
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/21374