Geologic Reconnaissance in the Matanuska and Talkeetna Basins, AlaskaU.S. Government Printing Office, 1907 - 71 sayfa |
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91 sonuçtan 1-5 arası sonuçlar
Sayfa 29
... slopes gently northward . East of Chickaloon Creek its altitude is about 5,000 feet . It is somewhat broken by small faults , the maximum displacement noted being 50 feet . At many places the basalts rest upon a conglomerate occupying ...
... slopes gently northward . East of Chickaloon Creek its altitude is about 5,000 feet . It is somewhat broken by small faults , the maximum displacement noted being 50 feet . At many places the basalts rest upon a conglomerate occupying ...
Sayfa 35
... slope toward Matanuska Valley . Along the upper course of the valley on the flank of Sheep Mountain glacial gravels of various exotic types are found at an elevation 1,500 feet above the valley floor . These facts indicate that the ice ...
... slope toward Matanuska Valley . Along the upper course of the valley on the flank of Sheep Mountain glacial gravels of various exotic types are found at an elevation 1,500 feet above the valley floor . These facts indicate that the ice ...
Sayfa 36
... slope of the bench to the Susitna , is steep . It is probable that an ice sheet that occupied the entire Susitna Valley and was fed from the surrounding mountains once moved southward to Cook Inlet . The tributaries from the Talkeetna ...
... slope of the bench to the Susitna , is steep . It is probable that an ice sheet that occupied the entire Susitna Valley and was fed from the surrounding mountains once moved southward to Cook Inlet . The tributaries from the Talkeetna ...
Sayfa 37
... slope of these cones ( 6 ° to 10 ° ) and their symmetrical development make them noteworthy features of the topography . The formation of such detrital cones is held by workers in the Western States to be due to a sudden break in the ...
... slope of these cones ( 6 ° to 10 ° ) and their symmetrical development make them noteworthy features of the topography . The formation of such detrital cones is held by workers in the Western States to be due to a sudden break in the ...
Sayfa 41
... slope toward Mata- 0 2 3miles FIG . 1. - Section across Matanuska River at Conglomerate Mountain . 1 , Sandstones , shales , arkoses ; 2 , conglomerate with sandstone lenses ; 3 , graywackes and slates ; 4 , quartz diorite . Tsadaka Cr ...
... slope toward Mata- 0 2 3miles FIG . 1. - Section across Matanuska River at Conglomerate Mountain . 1 , Sandstones , shales , arkoses ; 2 , conglomerate with sandstone lenses ; 3 , graywackes and slates ; 4 , quartz diorite . Tsadaka Cr ...
Sık kullanılan terimler ve kelime öbekleri
Alaska andesite Anvil Creek basin beach beam bed rock bench Bendeleben Mountains bowlders Brooks Bull Cape Nome cement cent channel Chickaloon Chickaloon Creek chloritic claims clay coal coarse coastal plain Collier concrete conglomerate contain creek bed district ditch east elevation erosion feet thick Geological Survey geology Glacier gold placers granite graphitic gravel greenstone Gulch inches intrusive Iron Creek Jurassic Kenai Kigluaik Mountains Knik Knik River Kougarok Kuzitrin Kuzitrin River limestone lower Matanuska Matanuska River material mica schist miles mineral mining Moffit mouth muck Niukluk Niukluk River Nome and Norton Nome group Nome River Norton Bay Norton Bay regions nuggets occur Ophir Creek pay streak pebbles placer gold Port Clarence probably reconnaissance reported sand sandstones schist Seward Peninsula Shale slates slopes sluice boxes special publication stream surface Susitna Talkeetna Mountains test pieces tributary U. S. Geol upper valley
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