INDEX

Adamello area 19, 94 Becke, F. 1 Adams, F. D. 9, 88 bedding planes 19, 84, 40; PI. 7, fig. 1 Adirondacks, New York 15, 17, 29, 36-39, 98, Bederke, E. 18, 19, 80, 88, 86 95, 101; PI. 1; PI. 9, flg. 2; PI. 11, flg. 2 Belknap Mountains, New Hampshire 168 Alabama: see Hog Mountain district Bell, J. F. 159, 168 A land Islands 170 Belt Mountains, Montana 128 Alaska 12, 17, 50, 68, 161 bending of materials 102 Alaskite 67 Berg, G. 57 alkaline rocks 93, 108 Bethel, Vermont 18, 80, 35 Alleghany district, California 105 Bethlehem 89 Allison, A. 161 Big Horn Mountains, Wyoming 40, 165 Anderson, A. L. 68, 163 , 9 Anderson, E. M. 106 Billings, M. P. 8, 88, 89, 164 andeslte 89 Billingsley, P. 12 anorthosite 19, 29, 101, 167 biotite 8, 28 Antarctica: see Ross shelf ice Birch, R. E. 49 antithetic fractures 29; PI. 18; PI. 14 Black Hills, South Dakota 40 apex of arch 65, 98, 116, 146 Blixt, J. E. 124 — massif 56, 59, «8, 75, 77, 101, 113 Bodmin, Cornwall 60 80, 8«, 89, 41, 61, 72, 78, 87, 91, 101, Bohemian mass 188 103, 105-108, 110, 116, 128, 133, 151; PI. 21 Bonanza district, Colorado 110 — schlieren 57, 68 Boos, C. M. Ill Appalachian Mountains 12, 82 Boos, M. F. Ill Arbuckle Mountains 47 border, gneissic 46, 66, 67, 69, 114, 128 arch, longitudinal 76 — zone 90, 101-103, 114, 144 —, transverse 76 Bornholm 88, 106 — of dome 59, 98 bornite IT — of flow layers 55, 66, 81, 118 bostonite 47 — Of flow lines 28, 29, 55, 69, 72, 78, 75-78, Boulder batholith 10, 12, 16, 18, 50, «6, 80, 97, 99, 103, 114, 116, 124, 146 87, 90, 91, 104, 115, 125, 128; PI. 8, fig. 2; — structure 67, 70, 107, 122, 124 PI. 5, fig. 1 ; PI. 20, fig. 1 ; PI. 23, fig. 2 Ardnamurchan 15, 18, 88, 106 Boutwell, J. M. 128 Argyll 161 Bowen, N. L. 12, 125 Arizona : see Bill Williams Mountain, Empire Bowie, W. 1 Mountains, Madera diorite, Navajo-Hopi Brammall, A. 60, 61 country, San Francisco field Brandberg, Southwest Africa, 89-91 Arran 83, 48, 124 Brewster, New York 47 Ascutney Mountain, Vermont 51, 88, 91 bronzitite 91 assimilation 50, 60, 66, 70 Brouwer, H. A. 161 augen 152, 158 bubble glass 52 Austria : see Kamp Valley Bucher, W. H. 1, 88 autolith 11, 12 Biiehlberg granite, 168 axis of flow lines 56 Buddington, A. F. 12, 68, 95 —- of folds 88, 52, 118 Burbank, W. S. 49, 110, 164 — of massif 55, 56, 71, 76, 98 Bushveld complex 22, 45, 92 Butler, B. S. 70 BacWund, H. G. 108 bysmalith 89. 124, 165 Bailey, E. B. 83, 93, 106, 110, 124 Balk, R. 7, 9, 10, 12, 15, 16, 17, 19, 25, 29, 30, Cactus granite, California 70, 82 35, 36, 40, 48, 63, 75, 77, 80, 83, 89, 90, California: see Cactus granite, Cuyama, 91, 93, 95, 99, 101, 104, 106, 110 Donner Pass, Grass Valley, Inyo Range, Ball, S. H. 15 Ireland Lake, Leevining Canyon, Mari- Ballard, S. M. 68 posa, Marysville Buttes, Mono volcanoes. Baltimore gabbro 28, 83, 93, 104 Mother Lode, Mt. Conness, Mt. Lyell, Bancroft, J. A. 68 Nevada City, North San Juan, San Bärhalde-Eisenbach massif 28, 88 Gorgonio Pass, Sierra Nevada, Sonora, Barre granite, Vermont 13, 28, 35, 73-76, 106, Stonewall granite, Tioga Pass, Tuolumne 114; PI. 7, flg. 1; PI. 15, flg. 1; PI. 19, Meadows, Yosemite National Park, Yuba flg. 1; PI. 21; PI. 22, flg. 2; PI. 23, flg. 1 Barrel!, J. 91, 125 River Barrow, G. 48, 61 Calkins, F. C. 65 Barth, T. F. W. 8 Callaghan, E. 164 basalt 94, 163 camptonite 109 Bascom, F. 19 Canada: see Chatham stock, Coldwell, Goud- basic dikes 30, 82, 85, 89, 41 reau, Killarney batholith, Loon Lake, Bastin, E. S. 47, 69 Monteregian Hills, Mt. Johnson, Nipiss- batholith 11, 66, 69, 121, 128, 184, 185 ing diabase. Rivière à Pierre, Shawini- Bavaria: see Biiehlberg granite, Hauzenberg gan Falls, Stoco Lake, Sudbury massif, , Saldenburg massif Canada balsam, fracturing of 29 Bavarian Forest 28, 53, 76-79, 88, 110, 113, Canadian Shield 94, 95 115, 138-135, 163, 166; PI. 24 Cape Neddick gabbro, Maine 89, 127 Baveno massif 110 Cara Brea, Cornwall 58, 61 Bay of Exploits, Newfoundland 166 Carnmenellis massif, Cornwall 53, 60, 61 Bay of Islands, Newfoundland 162 Carwinning Hill, Scotland 9 Bear Creek, Montana 68 Cassia batholith, Idaho 163 Bearpaw Mountains, Montana 127, 128 cataclastic structure 151, 153

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Cathedral Peak granodiorite 65, 108, 109; Damaraland 163 PI. 18 Dartmoor granite 15, 60, 61, 70, 118 cauldron subsidence 109, 165 Dathe, E. 57 Cavallo bysmalith 165 Deer Creek area, Wyoming 94 Chamberlin, R. T. Ill, 161 deformation ellipsoid 112 Chamberlin, T. C. 1 Dewey, Montana 12, 18 Chapin, T. 12, 68 diabase 19, 52, ill Chapman, R. W. 164 diagonal joints 87-39, 41, 116 Chatham stock, Quebec 169 dikes 20, 47, 48, 50, 53, 59, 63, 68, 97, 99, Chelikowsky, J. R. 161 103-106, 109, 112, 113, 115, 116, 128, 128, Cherry Mountain, New Hampshire 164 138, 141, 148, 151, 152, 159, 161, 163, 164; Cheviot district, Scotland 109 PI. 15, flg. 2; PI. 16; PI. 17, flg. 1 chlorite 27, 35, 87, 89, 41, 151 —, basic 80, 82, 35, 86, 39, 41; PI. 15, flg. 1; chonolith 131 PI. 21 chromite 91 — borders, foliated 46 Chudoba, K. 89 —, structure patterns 45, 46 Clapp, C. H. 16, 68, 128 diorite 67, 69, 78, 79, 84, 85, 100, 115, 116, clay, experiments with 29, 101; Pis. 12-14 124, 128; PI. 24 — minerals 85 — porphyry 128 Climax, Colorado 70 dip, plotting of 148, 149 Cloos, £. 8, 9, 16, 18, 19, 28, 28, 29, 80, 31, disconformable structures 46, 52-54, 112, 118, 35, 40, 53, 64-66, 73, 88, 85, 86, 87, 89, 93, 115 95, 98, 99, 100, 101, 104, 105, 108, 109, 165 discordant structures 46, 79, 84, 121-125, 128, Cloos, H. 1-3, 9, 10, 11, 18, 15, 16, 17, 19, 20, 129, 153 28, 28, 29, 80, 31, 82, 84, 85, 86, 89, 40, distension, crustal 82, 83 46, 48, 53, 56-58, 60, 65, 71, 76-80, 88-85, Divide, Montana 12, 18, 90 89, 91, 93, 94, 98, 99, 100, 101, 108, 104, dolerite 168 107, 110, 181-135, 142, 145, 148, 150, 160 Dolmage, V. 68 clots, basic 10, 12; PI. 2; PI. 8 dome of flow layers 55, 58-60, 88, 113 Clough, C. T. 50, 51, 98 — of flow lines 41, 55, 56 Coast Range granodiorite 68, 118 — structure 66, 67, 80, 81, 99, 107, 123, 124 Coats, R. R. 162, 165 Donner Pass, California 115 Cobalt, Ontario 111 Dorn, P. 165 Cohen, C. J. 28 Drescher, F. K. 28, 40, 71, 98 Coldwell, Ontario 170 Dresser, J. A. 9 Coleman, A. P. 93 drift of crust 84, 115 Collins, W. H. 69 Duluth gabbro 15, 45, 50, 98 Colorado: see Bonanza district, Climax, Georgetown district, Idaho Springs, Mt. East Clarendon, Vermont 52 Marcellina, Princeton batholith, Spanish economic problems 40 Peaks Eggleston, J. W. 88 Colorado shale 127 Eldridge, G. H. 68 combination of flow structures 28, 144-146 Ellicott City, Maryland 18, 86, 95, 104 Committee on Structural Petrology, National elusive flow structures 145, 147, 152 Research Council 135 Emmons, W. H. 165 compression experiments 82 Empire Mountains, Arizona 170 — quadrant 89 emplacement, batholith 66 Conant, L. C. 161 England: see Adamello area, Bodmin, Carn Concord, New Hampshire 18, 21 Brea, Carnmenellis massif. Lizard dis- concordant intrusions 121, 122 trict, Dartmoor granite, St. Austell, — structures 46 Scilly Isles cone sheets 105, 109, 117 epidote 35. 87 conformable structures 46, 52, 112 equigranuiar rocks 19, 24, 70, 82 Connecticut: see New Fairfield, Preston Erongo Mountains 89-91, 94 contact, discordant 70, 75 Erzgebirge, Saxony 48 — planes 58, 54, 58, 60, 61, 68, 79-81, 84, essexite 88 85, 87, 90, 97, 108, 110-117, 124, 125, exfoliation planes 40, 42, 105; PI. 7, fig. 1 127, 140, 141, 148, 152, 168; PI. 18; PI. expansion, lateral 109 22, fig. 2; PI. 28, flg. 1 — of dome 107 controversial problems 181, 182 experiments, compression 82 convection current 50, 60 —, fractures 89, 41 Conway granite, New Hampshire 89 —, with clay 101; Pis. 12-14 Cooper, J. R. 162 Cornwall: see Bodmin, Carn Brea, Carn- fabric analysis 125 menellis massif, St. Austell fan of joints 28, 29, 41, 65, 72, 97-99, 100, 102, Cornwall granite 15, 48, 57, 60, 77, 113 108, 116, 128, 158 Cortlandt norite 17, 92, 93 faults 124, 126-129, 184, 148, 149; Pi. 13; PI. Crawford, R. D. 69, 128 Crazy Mountains, Montana 88 14; PI. 18; PI. 21; PI. 28, flg. 2 Cross, C. W. 124 —, antithetic PI. 18; PI. 14 cross joints 20, 27, 30-32, 86-88, 41, 78, 97- —, flat normal 78, 97, 106-108, 116, 117, 128, 100, 107, 108, 116, 128, 181, 183, 148, 146, 124, 153; PI. 18; PI. 23, flg. 2 148; PI. 1; PI. 6, flg. 2; PI. 7, flg. 2; PI. —. synthetic PI. 12, flg. 1; PI. 13; PI. 14 8; PI. 9; PI. 10, flg. 1; PI. 17, flg. 2 feldspar 9, 14, 17, 57, 61, 70, 87-89, 152; PI. , fan of 28, 28, 72, 153 4, flg. 2 cross-sections 150 felsite 50, 88, 91 Cuillins, Scotland 45, 92 Fenner, C. N. 48, 50 Cuttingsville, Vermont 88 Ferguson, H.G. 105 Cuyama, California 69 field maps 142, 148 — methods 139-151 Dale, T. N. 12, 13, 19, 20, 22, 47, 48, 69, 75 — notes 148, 146 Daly, R. A. 18, 88, 121, 122, 125, 129, 181 — work, suggestions for 189

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Finlay, G. I. 75 gneiss 93, 133; PI. 24 Fischer, G. 13, 88 gneissic border 81, 67-69, 106, 114, 128: PI. fissures, marginal 101-107, 11«, 117 18; PI. 19, fig. 2 flat joints 84, 87, 89-41, 81, 116 — intrusions 86, 151-158 — normal faults 78, 97, 106-108, 116, 117, gold-quartz veins 105, 117 123, 158; PI. 18; PI. 28, flg. 2 Gordon, M. O. 94 — shear zones 110, 111 Gorkau, Silesia 28, 80, 72, 78 Flett, J. S. 15, 19, 48, 61 Goudreau, Ontario 165 floor of massif 77, 181 Gould, L. M. 161 flow layers 15, 16, 21-23, 25, 83, 89, 42, 46-52, graben structures 28; PI. 12, flg. 1; PI. 18; 57, 58, 61-66, 80, 81, 88, 89, 95, 108, 111- PI. 14 116, 128, 142-144, 151, 154, 155, 162, 168; Graber, H. V. 88 Pis. 4-6; PI. 7, flg. 2; PI. 8; PI. 10, flg. 2; granite porphyry 80, 58, 67 PI. 11; PI. 15, fig. 2; Pis. 16-18 Graniteville, Vermont 74 — lines 10, 11, 21-28, 81, 83-35, 39, 41, 50-57, granodiorite 66-69, 90, 91, 94, 99, 105, 114, 61, 68-74, 76, 77, 79, 80, 82, 84, 85, 88, 89, 115, 128, 128, 140, 163, 164; Pis. 2-5, flg. 92-98, 103, 107, 110-116, 123, 124, 181, 184, l; PI. 11, flg. l; Pi. 17, flg. l; Pi. 18; 140, 142-146, 151, 154, 155; PI. 1; PI. 2; PI. 19, fig. 2; PI. 20 PI. 6, fig. 2; PI. 7, flg. 2; Pis. 8-10, flg. 1; granophyre 90 PI. 16; PI. 17, flg. 2; Pi. 18; PI. 22, flg. granulation 152 1; PI. 24 Grass Valley, California 101, 105 — structures 7, 19, 23, 50, 55, 69, 112, 181, gravity stratification 162, 168 140-149, 154; Pis. 1-9; PI. 10, flg. 2; PI. Great Dyke, Rhodesia 93 16; PI. 22, flg. 1 Greenland : see Liverpool Land Flume, New Hampshire PI. 10, flg. 2 Griffith, A. A. 80 fluorite 27, 85, 87, 41 Griggs, D. T. 159 fluxion banding 15 Grimes, J. A. 12 foam structures 29; PI. 1; PI. 11, flg. 2 Grout, F. F. 9, 12-14, 15, 16, 17, 40, 46, 49, folds 88, 50-52, 118, 151 50, 52, 81, 89, 90, 98, 99, 104, 128, 165; — near contacts 127 PI. 5, fig. 1 foliated border 66, 128 Gutenberg, B. 1 foliation 15, 22, 40, 45-48, 61, 66-68, 79, 85, 95, 106, 151, 152; PI. 3, flg. 2; Pis. 4-6; Half Dome quartz-monzonite 65, 104, 108 PI. 7, fig. 2; Pi. 19, flg. 2 Hall, A. L. 16, 92 Föppl, A. 32, 88 Hall, A. S. 22 fracture mechanics 159 Hallefors dolerite, Sweden 168 —- symbols 155 Hamilton, Montana 68 fractures 27, 29, 60, 87, 97, 102-104, 106, 111, Hammer granite 106 116, 140; Pis. 12-14 Hanover, New Hampshire 13 —, antithetic PI. 18; Pi. 14 hard candy 52 —, synthetic PI. 12, flg. 1 hardway 20, 21, 84, 78, 182, 159; PI. 7, flg. 1 fragmentation of schlieren 29; PI. 10, flg. 2; Harker, A. 15, 16, 48, 50, 92, 124, 125 PI. 11 Harney Peak, South Dakota 47 France: see Lys granite gabbro 93 Franconia area, New Hampshire 164 Hauptkltlfte 84 Fräser, D. M. 68 Hauzenberg massif 28, 76-78, 84, 99, 110, 114, Friedeberg, Silesia 98, 124 188, 184; PI. 24 Fuiiwhara, S. 80 Hawkes, H. K. 48 Fuller, R. E. 48 Hawkes, L. 48 funnel fractures 106 Helm, Alb. 1 funnel-shaped massifs 57, 92-95, 116 Heyl, G. R. 166 Furschenbach, 80 Highwood Mountains, Montana 38, 40, 89, 127 128 gabbro 16, 19, 45, 48, 57, 67, 88, 89, 92-95, Hill, J.'B. 15, 19, 48, 58, 61 104, 111, 118, 116, 127, 162 Hill, J. M. 47, 69 gabbrodiorite 128 Hills, R. C. 109 Gäbert, C. 48 Hog Mountain district, Alabama 169 Gannett, R. W. 105 Hogbom, A. G. 16, 92 Garrey, G. H. 15 Holtedahl, O. 166 gash veins 97, 116 HBpfner, W. 15, 38, 86 Geikie, A. 9 Hore, R. E. Ill Georgetown district, Colorado 15 hornblende 8, 9, 28, 87, 89, 90, 94, 144 Germany: see Bärhalde-Eisenbach massif, Horninger, G. 166 Bavarian Forest, Bilchlberg granite, Howland, A. L. 162 Erzgebirge, Furschenbach, Glatz-Reich- Hudson, F. S. 69 enstein, Harz gabbro, Hauzenberg Hudson Highlands, New York 108, 158 massif, Lausitz granite, Meissen syenite, Humboldt Range, Nevada 166 Mittweida granite, Niederkirchen, Rie- Hurlbut, C. S., Jr. 166 sengebirge granite, Saar-Nahe district, hyperfusibles 113, 125, 129 Saldenburg massif, , Stein- hypersthene 163 kirche, Strehlen, Vogtland, Gevers, T. W. 160 Gianella, V. P. PI. 20, flg. 2 Iceland 48, 127 Gilbert, G. K. 16, 18 Idaho: see Cassia batholith. Wood River area Gilluly, J. 9, 124 Idaho batholith 10, 18, 68, 118, 128, 168, 167, glacier table 121 169 glaciers 76, 104, 114, 161 Idaho Springs, Colorado 47 Glangeaud, L. 165 Iddings, J. P. 48, 49, 52, 89, 124 glass 112 inclusions: see xenoliths Glass Buttes 48 incomplete arch of flow lines 56 Glatz-Relchenstein, Germany 80, 86 indirect relation, principal and local flow 77 Glencoe, Scotland 110 Ingerson, E. 162

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intratellurie phenocrysts 89, 80, 82 linear order 35, 181 intrusions, funnel-like 92, 116 clots 10, 12 intrusive sheets 110, 117 equigranular rocks 18 Inyo Range, California 82 phenocrysts 8,11 Ireland 90, 91, 127, 162 —• parallelism 61, 68, 71, 75, 90, 144, 147, 152, Ireland Lake, California PI. 2; PI. 4, flg. 2; 154 PL 11, flg. 1; PI. 17, flg. 1 — stretching 10 Irving, J. D. 189 lines of stretching 151 Isle of Rum 123 Link, T. A. Ill isoclinal folds 113 lithophysae 48 isostasy 121 lit-par-llt gneiss 154 Little Ascutney Mountain, Vermont 12, 88 Italy: see Baveno massif, Monzoni-Fassa Little Rocky Mountains, Montana 127, 128 Littleton area, New Hampshire 164 Jenney, C. P. 166 Liverpool Land, Greenland 167 Johnson Peak granite porphyry 65 Lizard district, England 19, 48 Johnston, W. D., Jr. 101, 105 Ljungner, E. 17, 20, 88, 40 Johnston-Lavis, H. J. ill local cross joints 100, 101 joints, diagonal 87-89, 41, 116 long distance faults 126, 128 —, fan of 28, 29, 41, 65, 72, 97-100, 102, 108, thrusts 128, 129 116, 123, 153 longitudinal arch 76 —, flat 84, 37, 89-41, 61, 73, 116 — joints 21, 34, 87, 88, 41, 73, 116, 132; PI. —, funnel-like 106 15, flg. 1 —, longitudinal 84, 41, 78, 116, 182; PI. 15, Loon Lake, Ontario 95 flg. 1 Loplanowski, S. 19, 80, 86 —, methods of measuring 159 lopolith 93 —, primary 84, 97-99, 102-107, 188, 184, 141, Loughlin, G. F. 16, 98 148, 149, 155, 169; PI. 19, flg. 2; PI. 20, Lowther, G. K. 168 flg. 1; PI. 22, flg. 2 Lys granite 169 —, relations to flow structures 27, 29 —, see also cross joints, marginal joints MacAllister, D. A. 48, 58, 61 K (symbol) 84, 132 Madera diorite, Arizona 69 k (symbol^ 89 Maine: see Cape Neddick gabbro, Stonington, Kamp Valley, Austria 48 Tayntor quarry, Vinalhaven Kaoko formation. Southwest Africa 90 Malaspina Glacier 161 Katmai, Alaska 50 mapping of flow structures 143 Keep, F. E. 94 maps, preparation of 142, 148, 149 Kekequabic Lake, Minnesota 15, 18 marginal Assures 65, 97, 101-107, 116, 117, Kemp, J. F. 189 128, 158; PI. 19, flg. 2; PL 20, flg. 1; PL Kepler Cascades, Wyoming 50 22, fig. 2 Kerr, P. F. 166 — foliation 67 kersantite 111 — upthrusts 65, 97, 101, 104-108, 116, 128, Kesler, T. L. 167 127, 153; PI. 18; PL 19, fig. l; PL 20, Killarney batholith 69 flg. 2; PI. 23, flg. 1 Kinsman granite, New Hampshire 104, 106 Mariposa, California 80, 65 Knife Lake slate, Minnesota 89 Marshall, C. E. 162 Knopf, A. 18, 18, 68, 82, 105 Maryland: see Ellicott City Knopf, E. B. 22, 167 Marysville Buttes, California 88 Kölbl, L. 131, 135 Massachusetts: see Milford, Quincy, Rock- Kolderup, C. F. 167 port Kopfseite 34, 132 massif 11, 54-57, 70, 97 Korn, D. 22 Matthes, F. E. 65 Kozu, S. 49 Mayo, E. B. 161, 167, 168 Kranck, E. H. 167 Mead, W. J. 1 Krieger, P. 88, 91 mechanism of intrusion 60, 121 Krokström, T. 52, 163 Meissen svenite 86 Kusamitsu, S. 80 metamorphic rocks 182,133 Kynaston, H. 109 Mexican glass 52 Mexico: see Pachuca district. Real del Monte L (symbol) 84 area 1 (symbol) 34 miarolitic cavities 91 40, 94, 121, 122, 124, 128, 162 mica 27, 89, 41, 152 ladder joints 97 microgranite 88, 89, 61 Lagally, M. 80, 104 Middle Peak, Montana 89 Lager 34, 40 Mikkola, E. Ill Landeck, Silesia 58 Milford, Massachusetts 22 Lane, A. C. 80 Milford-Barberton, I. 161 Längsklüfte 34 Mill City, Nevada 166 Langton, C. M. 167 Mill River, Vermont 51 Lapland, granulite 169 Millstone Hill, Vermont 74 Larsen, E. S., Jr. 8, 18 mineralizers 90, 91 Larsson, W. 168 lateral expansion 109 Minnesota: see Duluth gabbro, Kekequabic Lausitz granite 13, 28, 30, 32, 36, 62, 63, 114 Lake, Knife Lake slate, Pigeon Point, layers, due to settling 162 Saganaga Lake, Snowbank Lake, Ver- Leevining Canyon, California PI. 2 milion batholith, Wonder Island Leith, C. K. 1, 88 Mittweida granite, Germany 86 level of intrusion 91 mixed gneiss 154, 160 Leydenburg bronzitite 91 Modell, D. 168 Lightfoot, B. 94 molybdenite 30 Limekiln Springs, Montana PL 20, flg. 1 Mono volcanoes, California 50, 65, 97, 161; Lindgren, W. 68, 105 PI. 8; PI. 15, flg. 2; PI. 16; PI. 17, fig. 2

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Montana: see Bear Creek, Bearpaw Moun- Pabst, A. 12, 18 tains, Belt Mountains, Boulder batholith, Pachuca district, Mexico 160 Crazy Mountains, Dewey, Divide, Hamil- Palisade diabase 52 ton, Highwood Mountains, Limekiln Paradise Range, Nevada 164 Springs, Little Rocky Mountains, Middle parallelism, elusive 70, 73, 76 Peak, North Moccasin Mountains, Pipe- Pardee, J. T. 91 stone Springs, Shonkin Sag, Stillwater Park, C. F., Jr. 169 complex Park City, 128 Monteregian Hills 9, 1«, 18, 40, 47, 88, 108, Forest: see Bavarian Forest 109, 159 Peekskill norite. New York PI. 6, flg. 1 Monzoni-Fassa, Italy 94 pegmatites 85, 88-41, 87, 90, 91, 101, 103, 106, monzonite 89, 94 128, 124, 151 Moosilauke Mt., New Hampshire 106, 164 Peoples, J. W. 94, 162, 163 Mother Lode, California 105 Percy ring , New Hampshire 164 Mt. Conness, California 108 periadriatic intrusions 94 Mt. Holmes, Wyoming 89 peridotite 48, 162 Mt. Johnson, Quebec 109 Perkins, G. H. 75 Mt. Lyell, California 81 Perry, J. H. 88 Mt. Marcellina, Colorado 124 Pfahl, Bavaria 188, 134; PI. 24 Mt. Monadnock, New Hampshire 88 phacolith 93, 170 Mourne Hills, 90, 91, 127, 162 phenocrysts 14, 17, 20, 24, 25, 48, 57, 61, 69, Mull 33, 98 70, 80, 82, 87, 91, 112, 113, 147, 154; PI. Müller, L. 159 4, flg. 2 mushy 81, 128, 124 Philipp, H. 161 mylonite 14, 81, 107, 109, 110; PI. 24 piecemeal stoping 60, 121, 122, 128 Pigeon Point, Minnesota 52 Nädai, A. 38 Pilansberg, 109 Nakamura, K. PI. 22, flg. 1 Piper Mountain, New Hampshire 88 National Research Council 135 pipes, flow through 8, 9 Navajo-Hopi country 162 Pipestone Springs, Montana 90 nephelite syenite 47 Pirsson, L. V. 82, 88, 89, 91, 111 Nevada: see Humboldt Range, Mill City, pitch 94 Paradise Range, Silver Dyke, Tin Moun- — slope 147 tain, Tonopah, Washoe district pitchstone 50 Nevada City, California 105 planes of stretching 38, 106, 107, 110 Nevin, C. M. 38 platy flow structure 14, 22, 24, 61, 63, 144 New Fairfield, Connecticut 153; PI. 6, fig. 2; plugs 56, 87, 91, 97, 108, 109, 115, 117, 127, PI. 9, flg. 1 165; PI. 16 Newfoundland: see Bay of Exploits, Bay of pluton 181 Islands, Trout River area porphyrite 90, 94 New Hampshire: see Belknap Mountains, porphyry 47, 91, 94 Bethlehem granite, Cherry Mountain, Preston, Connecticut 93 Concord, Conway granite. Flume, Fran- primary gneiss 151, 152 conia area, Hanover, Kinsman granite, — joints 34, 39-41, 61, 63, 183, 141, 149 Littleton area, Moosilauke Mountain, Princeton batholith, Colorado 69 Mt. Monadnock, North Conway, Percy principal flow 114 ring dike, Piper Mountain, White Moun- projected strike 95 tains New Jersey: see Palisade diabase Q (symbol) 84 New York: see Adirondacks, Brewster, Cort- Q joints 84 landt norite, Hudson Highlands, Peeks- quartz diorite 88 kill norite • porphyry 94 Nipissing diabase 111 — monzonite 67, 104, 124 Niederkirchen, Germany 111 — veins 27, 80, 35, 101, 103, 105-107; PI. 21 Nolan, T. B. Ill Quebec: see Chatham stock, Monteregian nomenclature 84 Hills, Mt. Johnson, Shawinigan Falls Nordquist, H. 168 Querklüfte 84 norite 19, 92, 98, 113, 163; PI. 6, flg. 1 Quincy, Massachusetts 18, 16 normal faults 97, 106, 107, 109, 110, 116, 117, 123; PI. 18; PI. 28, flg. 2 Radial dikes 128 , in clay 29 — faults 128 North Conway, New Hampshire 89 — joints 109 North Moccasin Mountains, Montana 124 Raguin, E. 169 North San Juan, California PI. 19, flg. 2 Ransome, F. L. 69 Norway: see Oslo region, Sulitelma Rasor, A. C. 168 Nyamlagira crater, Africa 161 Ray, J. C. 17 Nygärd pluton, Sweden 163 Real del Monte area, Mexico 160 obsidian 50, 91, 97, 141, 161; PI. 8; PI. 15, red rock 93 flg. 2; PI. 16; PI. 17, flg. 2 Reeves, F. 127 Oklahoma: see Arbuckle Mountains regional expansion 84 O'Neill, J. J. 9, 15, 18, 47, 88 — tension joints 100, 101, 104 Ontario: see Coldwell, Goudreau, Killarney Reichert, H. 86 batholith, Loon Lake, Nipissing diabase, Reid, C. 15, 48, 61, 70, 82, 124 Stoco Lake, Sudbury Reis, O. M. Ill Oregon: see Glass Buttes reverse 104, 105; PI. 20, flg. 2 Ornö, Sweden 92 Reyer, E. 16, 29 Osborne, F. F. 108, 109, 159, 168, 169 Rhode Island: see Westerly Oslo region 166 Rhodesia, Great Dyke 93 Osman, C. W. 60, 61 rhyolite 49, 50, 51, 111, 113, 141, 161 overthrust 62, 127, 128, 167, 170 Richey, J. E. 9, 15, 18, 33, 46, 90, 91, 106, Oxaal, J. 20 127, 169

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Riedel, W. 30, 101 slickensides 88, 106, 116, 117 Riesengebirge granite 18-17, 40, 57-59, «1, 98, smelter slag 52 99, 103, 104, 113, 114, 149 Smith, G. 0. 189 rift 19, 20, 22, 34, 35, 71, 73, 159; PI. 7, flg. 1 Snowbank Lake, Minnesota 9, 16, 40, 70, 89, ring dikes 46, 164, 168 99, 104, 108, 115 Rivière à Pierre, Quebec 169 Sonora, California 65 Robinson, H. H. 9, 18 South Dakota: see Black Hills, Harney Peak Rockport, Massachusetts 18 Southwest Africa 89, 9ft, »4, 160 Rogers, G. S. 16 Spaltseite 84, 182 Romberg, J. 94 Spanish Peaks, Colorado 88 roof collapse 109, 125, 129 spherulites 51, 52, 161 Ross, C. P. 69, 169 s-planes (Sander) 86, 131 Ross shelf ice 161 Spurr, J. E. 15 Rouse, J. T. 94 Stark, J. T. 15, 18 RUger, L. 22 steep flow structures 87-89 ruptures, in foam PI. 1 steep-walled massifs 57, 86 Steinkirche, Germany 72 S (symbol) 34, 86, 182 Stenzel, H. S. 13, 19, 22, 28, 80, 82, 35, 86, s (symbol) 84 62, 68, 98, 170 Saar-Nahe district, Germany 111 steo faults 110 Saganaga Lake, Minnesota 14, 18, 165 Stillwater complex, Montana 45, 94, 162, 163 Sahama (Sahlstein), T. G. 169 stock 9, 87, 90, 91, 94, 106, 108, 109, 117, 128 St. Austell, Cornwall 60, 61 Stockton, Utah 124 Saldenburg massif, Bavaria 78, 84, 99; PI. 24 Stoco Lake, Ontario 95 Salomon, W. 19, 94 Stonewall granite, California 69 Sampson, E. 162 Stonington, Maine 13, 16, 57 Sander, B. 1, 22, 32, 86, 88, 125, 181-188, 185 stoping 60, 121-128, 125, 129 San Francisco field, Arizona 18 Stose, G. W. 19 San Gorgonio pass, California 68 Streckfl&che 107 sanidine 9 Streckung 10, 181 Saxony: see Erzgebirge, Meissen syenite Strehlen, Germany 18, 28, 28-30, 70-72, 75, Schärding granite 166 76, 88, 98, 99, 118, 124 schlieren 15, 16, 19, 23, 25, 29, 57-59, 63, 66; stretching, lines of 151 Pis. 4-6, flg. 1; PI. 8; PI. 10, flg. 2; PI. 11, striations 111, 117 flg. 1 Striegau-Zobten massif 80, 86 — arch 56, 63, 67, 78 strike, plotting of 142 — dike 48; PI. 17, flg. 1 structure patterns 45, 54 — dome 56-60, 65, 77, 78, 98 structures, concordant 46 Schmidt, W. 82, 88 —, conformable 46 Scholtz, H. 9, 19, 83, 89, 111 —, disconformable 46 Schräder, F. C. 91 —, discordant 46 Schuck, F. 86 subjacent mass 121, 128 Scilly1 Isles 60, 61 Sudbury, Ontario 45, 98 Scotland: see Ardnamurchan, Argyll, Arran, Suess, F. E. 78, 181, 138, 184 Carwinning Hill, Cheviot district, Cuil- Sulitelma, Norway 98 lins, Glencoe, Isle of Rum, Mull, Skye Sweden: see HSUlefors dolerite, Nygard Scottish Tertiary intrusions 83, 46, 90, 91, pluton, Orno, Skagerrak 105, 109, 110, 117, 124, 125, 161, 169 syenite 47, 86, 88, 89, 101, 104, 108, 153, 164, screen 46, 66, 123 170 Scrivenor, J. B. 48 — -granite 84, 85, 115; PI. 24 secondary foliation 151 — -porphyry 88, 124 — gneiss 151, 152 symbols, use of 142, 150, 154, 155 Sederholm, J. J. 170 synclinal intrusions 94 sedimentation of grains 118 syncline of flow lines 78, 84 segregations, basic 18, 17, 19, 24, 28, 81, 90 synthetic faults PI. 12, flg. 1; PI. 18; PI. 14 Seidl, E. 82 septum 65-67, 69 Taff, J. A. 47 sericite 35, 151 taffy 52 serpentine 48, 67 Tarr, R. S. 20 Shand, S. J. 109 Tayntor quarry, Maine 22 Shaggy Peak, Utah 9 T-dike, Kamp Valley, Austria 48 Shawinigan Falls, Quebec 169 tear fractures 81, 82, 41 shear joints 29, 37, 41, 110, 111, 141 tension joints 29, 81-88, 41, 5», 98-100, 102- sheeting planes 84, 63 104, 108, 116, 123; PI. 1; PI. 12, flg. 2 sheets, intrusive 53, 110, 111, 117, 141 — quadrant 89 Shonkin Sag, Montana 111 terminology 54 Siebengebirge, Germany 9, 89 Tertiary Intrusions, Scotland 109, 169 Sierra Nevada, California 9, 10, 12, 14, 16, Terzaghi, K. 80 18, 23, 30, 40, 48, 64, 68, 83, 85, 86, 87, Thelen, P. 18 90, 99, 100, 104, 105, 107, 118-115, 117, Thomas, H. H. 15, 18, 88, 46, 106 123, 165, 167, 168; Pis. 2-4; PI. 11, flg. 1; Thompson, F. A. 68 PI. 17, flg. l; PI. 18; PI. 19, flg. 2; PI. Thomson, J. E. 170 20, flg. 2 thrust faults 104, 107, 128 Silesia: see Friedeberg, Gorkau, Landeck, Tierra del Fuego 167 Striegau-Zobten massif tin lodes 60 sill 110, 117, 128, 141 Tin Mountain, Nevada 15 Silver Dyke, Nevada 166 S-joints 84, 86, 132 Tioga Pass, California 104; PI. 18 Skagerrak 17 titanite 17 S-KlUfte: see S-joints TomkelefT, S. I. 162 Skye 15, 48, 50 tonalite 94, 166 Tonopah, Nevada 111

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tourmaline 90 Waters, A. C. 48 trachyte 89 Watson, T. L. 69, 82, 91 Transvaal: see Pilansberg Weber, M. 48 Trout River area, Newfoundland 162 Weed, W. H. 109 Tsujimura, T. 80 Wegmann, C. E. 160 Tuolumne Meadows, California 65 Westerly, Rhode Island 18, 18, 47, 53, 54, 83, Tyrrell, G. W. 9, 83, 49, 124 118 Westerwald, Germany 89 ultrabasic rocks 162 Westgate, L. G. 69 Umpleby, J. B. 69 White Mountains 88, 89, 91, 104, 106 United States Geological Survey 150, 154 Whitman, A. R. Ill upthrusts 101, 104-108, 116, 127, 129; PI. 18; Whittle, C. L. 20 PI. 19, flg. 1; PI. 20, flg. 2; PI. 21; PI. Williams, C. R. 164 23, flg. 1 Williams, H. 88, 89, 162 uranophane 27 Willis, B. 38 Ussher, W. A. E. 48, 61 Willow Creek, Alaska 17 Utah: see Park City, Shaggy Peak, Stockton Wilson, G. V. 9 Wilson, M. E. 95 Vanderwilt, J. W. 70 Wilson, N. L. 108, 109, 159 Vaughan, F. E. 70, 82 Winehell, A. 18 Vermilion batholith, Minnesota 17 Windsor, Vermont 13 Vermont: see Ascutney Mountain, Barre Wisser, E. 160 granite. Bethel, Cuttingsville, East Wonder Island, Minnesota 18 Clarendon, Graniteville, Little Ascutney Wood River area, Idaho 69 Mountain, Mill River, Millstone Hill, Woodbury, Vermont 13, 106 Windsor, Woodbury Woolsey, L. H. 128 Vinalhaven, Maine 18 Wyoming: see Big Horn Mountains, Deer Vogt, T. 93 Creek area, Kepler Cascades, Mt. Vogtland, Germany 15, 86 Holmes, Yellowstone National Park von Bubnolf, S. 28, 29, 88, 98, 106, 132 von Engeln, O. D. 161 xenoliths 9, 17, 19, 24, 49, 60, 61, 66, 67, 69, von Wolff, F. 89 70, 72, 73, 124, 125, 147, 151, 152; PI. 21 Wager, R. 22, 28 Yellowstone National Park, Wyoming 50, 89 Wagner, P. A. 91, 94 Yosemite National Park, California 31, 40, Wandke, A. 89, 127 64-66, 85, 100, 108, 109, 161, 165; Pis. 2-5, Washburn, B. 161 flg. l; PI. 11, flg. 1; PI. 17, flg. l; PI. 18; Washington, H. S. 16, 88 PI. 19, flg. 2; PI. 20 Washoe district, Nevada 165 Yuba River, California PI. 20, flg. 2 water movement PI. 1; PI. 22, flg. 1 waterfalls 52 Zealley, A. E. V. 94

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