GEOLOGICAL FIELDWORK 2010

Transcription

1 MINISTRY OF FORESTS, MINES AND LANDS MINISTRY OF ENERGY GEOLOGICAL FIELDWORK 2010 A SUMMARY OF FIELD ACTIVITIES AND CURRENT RESEARCH Paper

2 GEOLOGICAL FIELDWORK 2010 A Summary of Field Activities and Current Research Ministry of Forests, Mines and Lands Paper

3 Ministry of Forests, Mines and Lands Mines and Mineral Resources Division Parts of this publication may be quoted or reproduced if source and authorship are acknowledged. The following is the recommended format for referencing individual works contained in this publication: Logan, J.M., Mihalynuk, M.G., Friedman, R.M. and Creaser, R.A. (2011): Age Constraints of Mineralization at the Brenda and Woodjam Cu-Mo±Au Porphyry Deposits An Early Jurassic Calcalkaline Event, South-central British Columbia; in Geological Fieldwork 2010, BC Ministry of Forests, Mines and Lands, Paper , pages COVER PHOTO: Left Ray Lett soil sampling at the Watson Bar property 40 kilometres north of Lillooet; Emeritus Geochemist, Right Nick Massey looking at diorite and pyroxenite intrusive into Nicola Group sediments in the Lawless Creek area northwest of Princeton; Emeritus Geoscientist, BACK PHOTO: Scott Caldwell (L) and Paul Schiarizza (R) () mapping structure and stratigraphy in the Kutcho Creek volcanogenic massive sulphide district. This publication is also available, free of charge, as colour digital files, in Adobe Acrobat PDF format, from the BC Ministry of Forests, Mines and Lands website at: British Columbia Cataloguing in Publication Data Main entry under title: Geological Fieldwork: Annual. Issuing body varies Vols. For issued in series: Paper / British Columbia. Ministry of Energy, Mines and Petroleum Resources; vols for , Paper / British Columbia. Ministry of Employment and Investment; vols for , Paper / British Columbia Ministry of Energy and Mines; vols for 2005-, Paper / British Columbia Ministry of Energy, Mines and Petroleum Resources. Includes Bibliographical references. ISSN X=Geological Fieldwork 1. Geology - British Columbia - Periodicals. 2. Mines and mineral resources - British Columbia - Periodicals. 3. Geology - Fieldwork - Periodicals. 4. Geology, Economic - British Columbia - Periodicals. 5. British Columbia. Geological Survey Branch - Periodicals. I. British Columbia. Geological Division. II. British Columbia. Geological Survey Branch. III. British Columbia. Geological Survey Branch. IV. British Columbia. Dept. of Mines and Petroleum Resources. V. British Columbia. Ministry of Energy, Mines and Petroleum Resources. VI. British Columbia. Ministry of Employment and Investment. VII. British Columbia Ministry of Energy and Mines. VIII. Series: Paper (British Columbia. Ministry of Energy, Mines and Petroleum Resources). IX. Series: Paper (British Columbia. Ministry of Employment and Investment). X. Series: Paper (British Columbia Ministry of Energy and Mines). XI. Series: Paper (British Columbia Ministry of Energy, Mines and Petroleum Resources). QE C (Rev.) VICTORIA BRITISH COLUMBIA CANADA JANUARY 2011 ii

4 FOREWORD Geological Fieldwork 2010 The (BCGS) presents here the results of 2010 field surveys and geoscience research in the thirty-sixth edition of Geological Fieldwork. The articles profile some of the considerable staff expertise housed in the Survey. The provision of new geoscience data about British Columbia is a key activity of the BCGS that leads to mineral tenure acquisition and increased mineral exploration activity in the Province. Most articles are contributions by Survey staff to the understanding of the geology, geochemistry, and mineral deposits of the Province. The volume also includes contributions from the Geoscience and Natural Gas Development Branch of the Ministry of Energy and other professional geoscientists. Late in 2010, the government of British Columbia reorganized the natural resource sector ministries. The BCGS moved to the new Ministry of Forests, Mines and Lands along with the Mineral Policy Branch, while the regional geologists and the remaining Mines and Minerals Division staff of the former Ministry of Energy, Mines and Petroleum Resources moved to the new Ministry of Natural Resource Operations. Successes The BCGS, in partnership with Geoscience BC, continued with the second year of a surficial geology and till geochemistry sampling program in the Colleymount map area southeast of Houston. The aim of the fieldwork is two-fold: to reconstruct the region s glacial and ice-flow history and assess the economic potential of covered bedrock. The second season of the North Coast project, jointly delivered with the Geological Survey of Canada (GSC), covered a map area of 30 by 50 kilometres. Mapping in 2010 focused on the southern end of the Alexander terrane near Klemtu. One highlight of this work is that the Grenville Channel fault is a mid- Cretaceous sinistral fault of regional extent (>150 km). The Iskut River project followed up on the 2009 summer program with mapping in the Hoodoo Mountain area north of the Rock and Roll volcanogenic massive sulphide deposit. This project is a partnership between Pacific North West Capital Corp., the University of Victoria, the GSC, and the BCGS. The new Kutcho Creek project is a two-year bedrock mapping program initiated by the BCGS in 2010 in partnership with the Geological Survey of Canada and Kutcho Mining Corp. The BCGS and the GSC began collaborating on a multi-year province-wide study of rare metals. This project falls under the renewed Targeted Geoscience Initiative program (TGI-4) of the GSC. Our online interface MapPlace and its supporting site now exceed 11,000 web pages. This interface is used 24 hours a day, 7 days a week by the exploration community world wide and plays an essential and growing role in attracting investment to the province. Sixteen mineral resource assessments were completed to facilitate treaty negotiations and government land use planning. The Property File database now features more than 25,000 documents online. MINFILE continues to improve with 171 MINFILE occurrences updated and 20 new ones identified. Staff of the BC Mineral Development Office in Vancouver hosted international investor delegations and led the mining Asia Investment Mission in November. The BCGS initiated a new Emeritus Scientist program with two new members in In 2010, the BCGS restarted its 8 member Advisory Subcommittee after a 6-year hiatus. The subcommittee includes 4 industry representatives from Geoscience s BC Technical Advisory Committee and 4 independent industry members that together provide advice on the technical activities of the Survey. Survey geologists were key presenters at conferences and workshops around the province including Roundup, KEG, Minerals South, Minerals North, Smither s Rock Talk, and led multiple industry field trips to the North Vancouver Island, Nechako, and Merritt areas. The BCGS hosted a sold-out International Workshop on the Geology of Rare Metals in Victoria on Nov. 9 th and 10 th. The workshop was held in lieu of a fall BCGS Open House. D.V. Lefebure Chief Geologist Geological Fieldwork 2010, Paper iii

5 TABLE OF CONTENTS Rowins, S.M., Jones, L., Lefebure, D.V. and Fredericks, J.: Activities in NORTHERN BRITISH COLUMBIA Ferri, F., Hickin, A. and Huntley, D.: Bedded Barite-Pyrite Occurrences in upper Besa River Formation, western Liard Basin, British Columbia and Regional Correlations with Devonian to Mississippian Subsurface Formations Hora, Z.D., Langrová, A. and Pivec, E.: Nickeliferous Minerals in the Cassiar Asbestos Deposit, Northern British Columbia (NTS 104P/05) - Relevance for Nickel Exploration Mihalynuk, M.G., Logan, J.M., Zagorevski, A. and Joyce, N.: Geology and Mineralization of the Hoodoo Mountain Area (NTS 104B/14E) Mihalynuk, M.G., Ambrose, T.K., Devine, F.A.M. and Johnston, S.T.: Atlin Placer Gold Nuggets Containing Mineral and Rock Matter: Implications for Lode Gold Exploration Nelson, J.L., Diakow, L.J., Karl, S., Mahoney, J.B., Gehrels, G.E., Pecha, M. and van Staal, C.: Geology and Mineral Potential of the Southern Alexander Terrane and western Coast Plutonic Complex near Klemtu, Northwestern British Columbia Schiarizza, P.: Geology of the Kutcho Assemblage between Kutcho Creek and the Tucho River, Northern British Columbia (NTS 104I/01) CENTRAL BRITISH COLUMBIA Ferbey, T.: Quaternary Geology and Till Geochemistry of the Colleymount Map Area (NTS 093L/01), West- Central British Columbia Logan, J.M., Mihalynuk, M.G., Friedman, R.M. and Creaser, R.A.: Age Constraints of Mineralization at the Brenda and Woodjam Cu-Mo±Au Porphyry Deposits An Early Jurassic Calcalkaline Event, South-Central British Columbia SOUTHERN BRITISH COLUMBIA Massey, N.W.D.: Southern Nicola Project: Geochemistry of Volcanic Rocks of the Nicola Group West of the Boundary Fault (Parts of NTS 092H/02, 07 and 10) PROVINCE-WIDE Cui, Y.: Improving the Efficiency in the Maintenance of the Provincial Geological Database Cui, Y: Regional Geochemical Survey: Validation and Refitting of Stream Sample Locations Lett, R.E. and Paterson, K: A Comparison of Several Commercially Available Methods for the Geochemical Analysis of Rare Earth, Rare Metal and High Field Strength Elements in Geological Samples Paradis, S. and Simandl, G.J.: Carbonate-hosted, Nonsulphide Zn Pb (supergene) Mineral Deposit Profile B iv

6 MINISTRY OF FORESTS, MINES AND LANDS MINISTRY OF ENERGY GEOLOGICAL FIELDWORK 2010 A SUMMARY OF FIELD ACTIVITIES AND CURRENT RESEARCH Paper