Moose River Basin: geology and mineral potential - Geology Ontario

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Moose River Basin OGS10458 Photo 2.5-Photograph showing outcrop of Mattagami Formation in contact with the overlying Quater nary deposits exposed on Adam Creek. MISTUSKWIA BEDS Two of the winter 1975 drillholes (75-02, 75-03) encountered nonlithified sands and clays that appeared lithologically different from sediments of the Mattagami Formation found elsewhere in the basin. Palynological analysis (Norris 1977; this report) established a Middle Jurassic age for the clay hori zons, and Hamblin (1976; this report) confirmed the distinct lithological nature of the sands. Lack of data prevents definition of precise geographic and strati graphic boundaries for this new rock unit so that it cannot be accorded full formational status. Following Telford et al. (1975), the informal name Mistuskwia Beds is applied. The beds are named after the Mistuskwia River, a tributary of the Kwataboahegan River in the central part of the Moose River Basin. 34
Mesozoic Stratigraphy Detailed descriptions of the occurrences of the unit in the two drillholes are provided below, and in the following chapter by A.P. Hamblin. Briefly, the Mis tuskwia Beds consist of varicoloured (grey, green, brown, pink and red), calca reous clays and thinner horizons of nonlithified, grey to white, fine to medium grained, calcareous quartz sands. Drillhole 75-02 Petrographic studies by Hamblin (1976; this report) have established the occurrence of the Mistuskwia Beds at a depth of 107.7 m to 125.8 m in this drill hole (Figure 2.3). This was confirmed by Price (1978) after examination of the Ontario Geological Survey material. From 107.7 m to 114.2 m the sequence consists of greenish-grey, greybrown,and light brown, calcareous clay with occasional thin laminae of white kaolinitic clay. Between 114.2 m and 121.2 m the dominant lithology is a white, medium to fine grained, calcareous, quartz sand with minor green clay laminae. From 121.2m to 123.7m the sands are much coarser grained, and the basal 2.0 m of the Mistuskwia Beds is a conglomerate with abundant limestone fragments, small pyrite concretions, reddish sandstone fragments, and quartz, chert, and volcanic pebbles in a sandy silt matrix. Overlying the Mistuskwia Beds in this drillhole is an 8.4 m interval of grey, medium to coarse grained, quartz sand interbedded with grey and brown clay and sandy clay. Lower Cretaceous palynomorphs were extracted from clay samples in the upper part of the interval (Telford et al. 1975). The boundary be tween these probable Lower Cretaceous sediments and the Mistuskwia Beds is quite sharp. The lower boundary of the unit is also sharp with the nonlithified Middle Jurassic sediments underlain by brown and buff, argillaceous lime stone that is probably referable to the Middle Devonian Williams Island For mation. Drillhole 75-03 This northernmost drillhole (Figure 1.3) displays an incomplete section of the Mistuskwia Beds extending from 116.3 m to the bottom of the hole at 135.7 m depth (Figure 2.4). Middle Jurassic palynomorphs were identified by Norris (1977) from samples between 119.1 m and 128.6 m. Using parameters such as sorting, roundness, and sphericity, Hamblin (1976; this report) confi rmed that grey quartz sands occurring between 116.3 m and 119.1 m were dis tinctly different from sands of the Mattagami Formation. The lithologies of the Middle Jurassic sediments in this drillhole are very similar to those of drillhole 75-02. Clays, which make up most of the section are varicoloured and calcareous. Quartz sands, which are interbedded with the clays in the upper 8.0 m of the section, are grey or light brown, medium to fine grained, well sorted and rounded, and calcareous. The upper boundary of the Mistuskwia Beds with overlying Pleistocene gravel is sharp although, as noted 35
Page 1 and 2: THESE TERMS GOVERN YOUR USE OF THIS
Page 3 and 4: Ontario Geological Survey Study 21
Page 5: FOREWORD MOOSE RIVER BASIN The Meso
Page 8 and 9: CONVERSION FACTORS FOR MEASUREMENTS
Page 10 and 11: In order to maximise the use of sam
Page 12 and 13: Moose River Basin ABSTRACT The vast
Page 14 and 15: Moose River Basin the Paleozoic and
Page 16 and 17: Moose River Basin definitely whethe
Page 18 and 19: Moose River Basin the Onakawana are
Page 20 and 21: Moose River Basin Onakawana were di
Page 22 and 23: History of Geological Exploration f
Page 24 and 25: Moose River Basin mounted Acker dri
Page 26 and 27: Moose River Basin REFERENCES Aquita
Page 28 and 29: Moose River Basin Henley, T.J., and
Page 30 and 31: Moose River Basin Shawinigan Engine
Page 32 and 33: Moose River Basin 2.6-Log of drillh
Page 34 and 35: Moose River Basin Figure 2.1-Geolog
Page 36 and 37: Moose River Basin Drillhole Locatio
Page 38 and 39: Moose River Basin garni and Abitibi
Page 40 and 41: Moose River Basin quite irregular i
Page 42 and 43: Moose River Basin OGS10456 Photo 2.
Page 46 and 47: Moose River Basin DEPTH METRES FEET
Page 48 and 49: Moose River Basin by Hamblin (this
Page 54 and 55: Moose River Basin DEPTH ELEVATION 9
Page 56 and 57: Moose River Basin sediments of the
Page 58 and 59: Moose River Basin vicinity of drill
Page 60 and 61: Moose River Basin Scintex Surveys L
Page 62 and 63: Moose River Basin 3.4-Hornblende-py
Page 64 and 65: Moose River Basin TABLE 3.1 SAND SA
Page 66 and 67: Moose River Basin The Missinaibi Ri
Page 68 and 69: Moose River Basin clay and sand of
Page 70 and 71: Moose River Basin DRILLHOLE 75-02 S
Page 72 and 73: Moose River Basin PERCENTAGE 57 59
Page 74 and 75: Moose River Basin PERCENTAGE 20 30
Page 76 and 77: Moose River Basin clays, carbonate,
Page 78 and 79: Moose River Basin sin. Samples 185
Page 80 and 81: Moose River Basin blue-green hornbl
Page 82 and 83: ^J- C 3 heavy minerals-amo assembla
Page 84 and 85: 75-02 75-03 75 -05 75 -06 DEPTH LOG
Page 86 and 87: Moose River Basin dium coarse grain
Page 88 and 89: Moose River Basin sand with some gr
Page 90 and 91: Moose River Basin 101 - well sorted
Page 92 and 93: Moose River Basin APPENDIX B All mi
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Moose River Basin strong pleochrois
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Moose River Basin HEAVY MINERAL ANA
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Moose River Basin DRILLHOLE 75-06 d
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Moose River Basin DRILLHOLE 75-05 D
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Moose River Basin Telford, P.O., M.
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Moose River Basin ABSTRACT Disperse
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Moose River Basin floras from which
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Moose River Basin Erlansonisporites
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Moose River Basin Biretisporitespot
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Moose River Basin Cicatricosisporit
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Moose River Basin Cicatricosisporit
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Moose River Basin MOOSE RIVER BASIN
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Moose River Basin Plate 1. All figu
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Moose River Basin Plate 2. All figu
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Moose River Basin Plate 3 All figur
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Moose River Basin Plate 4 All figur
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23 24 Mesozoic Palynology
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Mesozoic Palynology 10 fe. 11 12 13
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24 25 26 Mesozoic Palynology
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Mesozoic Palynology 10 11 12 13 14
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Mesozoic Palynology 23 125
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Mesozoic Palynology
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Mesozoic Palynology 10 11 13 14 15
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Mesozoic Palynology REFERENCES Bell
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Mesozoic Palynology Williams, G.L.
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Moose River Basin Moose River Basin
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Moose River Basin examined..." and
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Moose River Basin The Onakawana Lig
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Moose River Basin o Q. 0) T3 O) 142
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Moose River Basin In samples of lig
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Moose River Basin Figure 5.4-Map sh
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Moose River Basin CHAUSSE CREEK, OP
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Moose River Basin DRILLHOLE 75-05 T
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Moose River Basin more is to be gai
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Lignite and Industrial Mineral Reso
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DRILLHOLE 75-03. Lignite and Indust
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INDEX PAGE Abitibi River . . . . .
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PAGE Pleistocene-Mesozoic contact.
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Moose River Basin REFERENCES Aquita
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21 22 24 25 26 28 30
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11 12 13 14 16 17 18 19 23 25
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10 11 12 13 14 15 ' 4 16 17 18 19 2
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Moose River Basin: geology and mineral potential - Geology Ontario

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