Ancient Pacific Margin Part VI Still Heading South: Potential VMS Hosts in the Eastern Dorsey Terrane,
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چکیده
The goal of this project is to trace out, within central northern B.C., stratigraphy favorable to the formation of Early Mississippian volcanogenic massive sulphide deposits similar to Kudz Ze Kayah, Wolverine, and Fyre Lake, which are hosted by the Yukon-Tanana Terrane in the Finlayson Lake belt of central Yukon. Begun in 1997, the project has focussed on two areas, the eastern Dorsey Terrane near the headwaters of the Cottonwood River in central Jennings River map area (Figure 1; Nelson et al., 1998a, Nelson, 1999), and the Big Salmon Complex (Mihalynuk et al., 1998 and this volume). Fieldwork in the eastern Dorsey Terrane in 1999 extended the area of coverage south into 104O/1, and taking advantage of the expertise and logistical support provided by the new An-
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Ancient Pacific Margin Part II: A Preliminary Comparison of Potential VMS-hosting Successions of the Yukon Tanana Terrane, from Finlayson Lake District to Northern British Columbia*
The Yukon-Tanana Terrane of Yukon, Alaska and northern British Columbia consists of poorly understood, lithologically diverse successions of metasedimentary and metavolcanic rocks and voluminous midand late Paleozoic granitic metaplutonic bodies (Mortensen and J i l s o n , 1 9 8 5 ; M o r t e n s e n , 1 9 9 2 ) . S i g n i f i c a n t volcanogenic massive sulphide deposits occur in the terran...
متن کاملDEVONO - MISSISSIPPIAN VMS PROJECT : CONTINUING STUDIES IN THE DORSEY TERRANE , NORTHERN BRITISH COLUMBIA By JoAnne
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