Overview of Results from the Greenstone ... - Geology Ontario

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Overview of Results from the Greenstone Architecture Project: Discover Abitibi Initiative J.A. Ayer 1 , P.C. Thurston 2 , R. Bateman 2 , B. Dubé 3 , H.L. Gibson 2 , M.A. Hamilton 4 , B. Hathway 2 , S.M. Hocker 2 , M.G. Houlé 1 , G. Hudak 5 , V.O. Ispolatov 2 , B. Lafrance 2 , C.M. Lesher 2 , P.J. MacDonald 2 , A.S. Péloquin 2 , S.J. Piercey 2 , L.E. Reed 6 and P.H. Thompson 7 Ontario Geological Survey Open File Report 6154 2005 1 Precambrian Geoscience Section, Ontario Geological Survey, Sudbury, Ontario 2 Mineral Exploration Research Centre, Laurentian University, Sudbury, Ontario 3 Geological Survey of Canada, Québec, Québec 4 Jack Satterly Geochronology Laboratory, Department of Geology, University of Toronto, Toronto, Ontario 5 Department of Geology, University of Wisconsin Oshkosh, Oshkosh, Wisconsin 6 L.E. Reed geophysical consultant, Rockwood, Ontario 7 Peter H. Thompson Geological Consulting Ltd., Ottawa, Ontario
Page 1: ISBN 0-7794-8652-8 THESE TERMS GOVE
Page 5: ONTARIO GEOLOGICAL SURVEY Open File
Page 9: Contents Abstract .................
Page 13: Appendix 1. Thermal Ionization Mass
Page 17: Miscellaneous Release—Data 155 Di
Page 21: The Timmins area and Kirkland Lake-
Page 27 and 28: Introduction The western part of th
Page 29 and 30: 6. The metamorphic subproject, base
Page 31 and 32: Geochronology The Greenstone Archit
Page 33 and 34: Figure 3. U/Pb concordia plots of T
Page 35 and 36: Figure 5. U/Pb concordia plot of TI
Page 37 and 38: Figure 7. U/Pb concordia plots of T
Page 39 and 40: Figure 9. U/Pb SHRIMP results from
Page 41 and 42: Figure 11. U/Pb SHRIMP results from
Page 43 and 44: (Figure 10A-2), with a peak age mod
Page 45 and 46: the youngest ages are not sufficien
Page 47 and 48: Table 2. Summary of southern Abitib
Page 49 and 50: Table 4. Locations of chert breccia
Page 51 and 52: arkosic conglomerate, and metre-sca
Page 53 and 54: previously identified as the Coulso
Page 55 and 56: An internal contact within the lowe
Page 57 and 58: Upper Part The upper Blake River as
Page 59 and 60: Porcupine assemblage (Ayer, Amelin
Page 61 and 62: The volcanic breccia sample from th
Page 63 and 64: Corfu, Jackson and Sutcliffe (1991)
Page 65 and 66: strongly foliated. As these intrusi
Page 67 and 68: phase of the composite intrusion th
Page 69 and 70: and the North Timmins-Crawchest reg
Page 71 and 72: The larger batholithic complexes wh
Page 73 and 74: Subproject Results VMS MINERALIZATI
Page 75 and 76:
KVC are to the east or northeast, e
Page 77 and 78:
Although no significant VMS mineral
Page 79 and 80:
fluids were channelized within the
Page 81 and 82:
Munro-Currie Subproject The goal of
Page 83 and 84:
north of the Warden Hill fault. Thu
Page 85 and 86:
The Currie (Tillex) showing occurs
Page 87 and 88:
2. Source of Sulphur: The magma mus
Page 89 and 90:
komatiitic dunite in massive cumula
Page 91 and 92:
Upper Komatiitic Horizon The Upper
Page 93 and 94:
sheet flow facies, channelized shee
Page 95 and 96:
Deformation postdating D4 is minor.
Page 97 and 98:
S2 is the earliest regional fabric
Page 99 and 100:
Mineralization of Kirkland Lake cam
Page 101 and 102:
area (ca. 2700-2696 Ma: Péloquin a
Page 103 and 104:
77 Figure 27. Simplified page-size
Page 105 and 106:
A regional-scale project of this ki
Page 107 and 108:
GEOPHYSICS SUBPROJECT Magnetic and
Page 109 and 110:
ocks looking east. Note the geology
Page 111 and 112:
In contrast, the volcanic rocks of
Page 113 and 114:
Carmichael and Hodgson 1995). Rocks
Page 115 and 116:
is, in turn, overprinted by a later
Page 117 and 118:
▪ ▪ providing an improved under
Page 119 and 120:
A new metamorphic framework has pro
Page 121 and 122:
Barrie, C.T. and Corfu, F. 1999. Th
Page 123 and 124:
——— 2002. U-Pb geochronology
Page 125 and 126:
Groves, D.I., Goldfarb, R.J., Rober
Page 127 and 128:
Jackson, S.L., Fyon, J.A. and Corfu
Page 129 and 130:
——— 1993b. U-Pb geochronology
Page 131 and 132:
——— 2003. Giant gold deposits
Page 133 and 134:
Williams, H.R., Stott, G.M. and Thu
Page 135 and 136:
Appendix 1 Thermal Ionization Mass
Page 137 and 138:
GEOCHRONOLOGY RESULTS AND DISCUSSIO
Page 139 and 140:
03BHA-0345 Felsic lapilli tuff, Gen
Page 141 and 142:
comprising a variety of essentially
Page 143 and 144:
analysis, and the data are presente
Page 145 and 146:
03PJM-131 Quartz-feldspar porphyry,
Page 147 and 148:
2690 Ma, are equivalent within erro
Page 149 and 150:
04MGH-0523 Intermediate volcaniclas
Page 151 and 152:
subhedral prisms, slightly flat to
Page 153 and 154:
Based on this relatively small samp
Page 155 and 156:
An age of 2699.8±3.6 Ma for the rh
Page 157 and 158:
A primary magmatic crystallization
Page 159 and 160:
Table A1. continued 206 Sample Anal
Page 161 and 162:
Table A1. continued 206 Sample Anal
Page 163 and 164:
SENSITIVE HIGH RESOLUTION ION MICRO
Page 165 and 166:
Table A2. continued 204 U Th Pb* Pb
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 174 and 175:
ISSN 0826 -9580 ISBN 0 -7794 -8652
Page 176:
Figure 2. Distribution of lithotect
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