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UNITED STATES DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY

BULLETIN 1059 PLATE2

ALASKA

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EXPLANATION
See chart below for rock classification

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N Granitic rocks
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Pegmatitic rocks
A
Intermediate

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Extreme differentiates

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Ultrabasic rocks

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Meteorite

Plutonic

Voleanic
Metamorphic
Mineral separates

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Areas of igneous and undifferentiated
metamorphic and igneous rocks

LOCALITIES OF IGNEOUS ROCKS IN THE UNITED STATES FOR WHICH PUBLISHED CHEMICAL URANIUM ANALYSES ARE AVAILABLE

CLASSIFICATION OF ROCKS STATES
Granitic Intermediate ‘Ultrabasic Alkalie rocks
Locality a rad Locality "ia Locality ed
Syenite Diorite Peridotite Nepheline- 1. Red granite, Topsfield, Maine. 71 | 27. Allanite from pegmatite, Whiteface Mountain, Essex County, N. Y__.._- 62 | 54. Samarskite from pegmatite, Devil’s Head Mountain, Douglas County,
syenite 2. Red granite, Red Beach, Maine_ 3 71 28. Pegmatite north of Duane, N. Y__ S| 70 (c) =
Granite Anorthosite Dunite Nepheline- 3. Granite and gneiss, southwestern Maine 7 29. Granite gneiss near De Peyster, N. Y_ 70 55. Quartz-bostonite dikes, Central City district, Colorado
monzonite 4, White Mountain magma series, New Hampshire (including Conway gran- 30. Uraninite from pegmatite, Richville Station, N. Y _ 94 | 56. Boulder Creek batholith, Colorado. __
Granodiorite | Gabbro Pyroxenite ‘Nepheline- 27, 54,56, 81 | 31. Pegmatite near Taleville, N. Y_ 70 | 57. Uraninite from pegmatite, Ingersoll claim, Keystone, 8. Dak.
shonkinite 5. ite from pegmatite, Ruggles mine, Grafton, N. H. — 93 | 32. Granite, vicinity of Fine, N. Y. a 70 58. Precambrian granite, Fremont County, Wyo-
Plutonic Tonalite Tachylyte Alnoite Sodalite syenite| 6. Quincy granite, Cape Ann, Mass__ _ 38 | 38. Granite, vicinity of Benson Mines, N. Y _ 70 | 59. Bearpaw Mountains, Mont...
Monzonite Diabase Shonkinite 7. Ayer granite, near Chelmsford, Mass 38 | 34. Alkalic rocks, Sussex County, N. Y_---_- ~ 50,81 | 60. Highwood Mountains, Mont.
(p) Quartz Quartz Shonkinite 8. Allanite from Blueberry Mountain pegmatite, near Boston, Mass 31 | 35. Pegmatitic rock, Poronowicz farm, northwest of Oxford Furnace, N.J.--. 59 | 61. Boulder batholith, Montana __-
monzonite bostonite syenite 9. Quincy granite, Swingle quarry, Quincy, Mass _ 3g | 36. Granite and granite gneiss, eastern shore of Raritan River and near Glen 62. Idaho batholith, Idaho-Montana -
Quartz diorite Ouachitite 10. Pegmatite-in gneiss, near Woreester, Mase. - 38 Gardner, Hunterdon County, N. J is 97 | 63. Rhyolite, Granite Point claims, Humboldt County, Nev a
Quartz syenite Theralite 1h, Gcasiniteatn peamagite, Wabbiiets aes 7g | 3% Pickering gneiss, Chestnut Hill-Marble Mountain area, Pennsylvania... 69,97 | 64. Modoc lava series, Modoe Lava quadrangle, northern California - 50, 54
Tjolite 1) “Alldnite from. pogainlitSl” GISenWHtth "Mikes: "(ow under! Quan Ese 38. Lovingston granite gneiss, west of Culpeper, Va_. _ . 98 | 65. Lassen Volcanic National Park, northern California________- 1, 2, 3, 22
Teschenite Sia " Z ‘i 63 | 39: Lovingston granite gneiss, northeast of Charlottesville, Va 98 | 66. Allanite from pegmatite, Ragged Peak, Yosemite National Park, Calif... 35
‘Tinguaite pe ees a gg | 20 Allanite from pegmatite, Amherst County, Va. 60 | 67. Sierra Nevada batholith, California
Pegmatite Meteorite Bostonite > TESEIRENE: AIRONET HOEY OONEURE Ber neeS~ F 41. Mineralized zones in hornblende gneiss, vicinity of Jefferson, Ashe County, 68. Minerals from pegmatite, northeast of Hector, Calif____ - 80
14. Sterling granite gneiss, Rhode Island_ ---- - 58 N.C___.__. | 9g | 69. Minerals from pegmatite, Pomona Tile quarry, California - 30
Rhyolite Basalt Olivine-rich Phonolite 15. Samarskite from pegmatite, Spinelli quarry, Glastonbury, Conn_ - 91 | 42. Cranberry granite, vicinity of Hampton, Carter County, Tenn. _ 98 | 70. Southern California batholith, California__ 27, 54, 56, 81
basalt. 16. Uraninite from pegmatite, Portland, Conn__ 43. Uraninite from pegmatite, Spruce Pine, N. C_. _ 31,91 71. Canyon Diablo meteorite, Coconino County, Ariz. = 79
Dacite ‘Trachyande- Leucitophyre 17. Uraninite from pegmatite, Rock Quarry Landing, Haddam Neck, Conn. 91 | 44. Uraninite from pegmatite, Marietta, 8. C_ _ 91 | 72. Modoc meteorite, Scott County, Kans___- _ 79
site 18. Pegmatite near Kent, Conn ae _ 88 | 45. Granite, and uranophane from granite, Stone Mountain, Ga. 24,105 | 73. Brenham Township meteorite, Kiowa County, Kans. = sl
Volcanic Obsidian Trachydoler- | Limburgite Nepheline basalt} 19. Quartz-feldspar-biotite gneiss, near Cornwall Bridge, Conn_ _ 58 | 46. Uranium minerals from pegmatite, Lamar County, Ga_._-_------------ 24 | 74. Carthage meteorite, Smith County, Tenn_ 13
ite 20. Branford granite gneiss, near Branford, Conn___ 58 | 47. Uraninite and allanite from pegmatite, Baringer Hill, Llano County, Tex-. 31,61 | 75. Pinedale area, Wyoming. 57
(v) Latite Andesite Augitite Leucite basalt 21. Uraninite from pegmatite, near Branchville, Conn. _ 81,91 | 48. Zircon from pegmatite in Quanah granite, Wichita Mountains, Okla_____- 55
Quarta latite Leucitite 22. Hafnium-rich cyrtolite from pegmatite, Bedford, N. Y_ 67,68 | 49. Monazite from pegmatite, Bull Creek, near Las Vegas, N. Mex_ - 69 ALASKA
Trachyte 23. Biotite gneiss and pegmatite, Bear Mountain area, N. Y _ 58 | 50. Euxenite from pegmatite, Bull Creek, near Pecos, N. Mex. _ uz
24, Pegmatite and granite, vicinity of Lake George, N. Y. 70 | 51. Samarskite from pegmatite, Petaca, N. Mex__.--- _ 81 | 1. Minerals from pegmatite, Willow Creek mining district, Alaska. - 65
Metamorphic | Gneiss 25. Gneiss and pegmatite southwest of Graphite, N. Y_ . 70 | 52, San Juan lava series, southwestern, Colorado-__ _ 27,54 | 2. Uranothorite from granite, Ruby~Poorman distrist, Alaska__ - 16
(m) 26. Allanite from pegmatite, near Mineville, Essex County, N 62 | 53. Euxenite from pegmatite, Trout Creek Pass, Colo_ _ 69 | 3. Granite and mineral separates, Mount Michelson area, Alaska. - 13