Bulletin, 325-329. sayılarU.S. Government Printing Office, 1949 |
Kitabın içinden
100 sonuçtan 1-5 arası sonuçlar
Sayfa 43
... mouth of Spadra Creek and about 300 feet at the east end of Spadra Hill . West of that point the displacement probably decreases gradually and dies out near the west end of Spadra Hill . The economic importance of this fault is very ...
... mouth of Spadra Creek and about 300 feet at the east end of Spadra Hill . West of that point the displacement probably decreases gradually and dies out near the west end of Spadra Hill . The economic importance of this fault is very ...
Sayfa 46
... mouth of Massard Creek about 7 miles southeast of Fort Smith . Its direction and linear extent could not be determined on account of imperfect geologic exposures , though at the point mentioned a lower bed of the Fort Smith formation is ...
... mouth of Massard Creek about 7 miles southeast of Fort Smith . Its direction and linear extent could not be determined on account of imperfect geologic exposures , though at the point mentioned a lower bed of the Fort Smith formation is ...
Sayfa 70
... mouth of Spadra Creek is at least 200 feet . A small fault , which differs from those described in that the downthrow is to the north , lies north of the western part of the Spadra field , bringing in a small area of Spadra coal at the ...
... mouth of Spadra Creek is at least 200 feet . A small fault , which differs from those described in that the downthrow is to the north , lies north of the western part of the Spadra field , bringing in a small area of Spadra coal at the ...
Sayfa 7
... mouth . The Talkeetna is about 75 miles long . Near its mouth it is a swift stream , 300 or 400 feet wide . During high water it can be crossed with a pack train only by swimming the horses and rafting the outfit . Sheep Creek is a ...
... mouth . The Talkeetna is about 75 miles long . Near its mouth it is a swift stream , 300 or 400 feet wide . During high water it can be crossed with a pack train only by swimming the horses and rafting the outfit . Sheep Creek is a ...
Sayfa 17
... mouth , where greenstones displaying columnar structure make up the north wall of the valley . These prove to be diabase porphyries . The thickness of the greenstones often exceeds 1,000 feet . The tuffs locally contain fragments of ...
... mouth , where greenstones displaying columnar structure make up the north wall of the valley . These prove to be diabase porphyries . The thickness of the greenstones often exceeds 1,000 feet . The tuffs locally contain fragments of ...
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Sık kullanılan terimler ve kelime öbekleri
Alaska Arkansas auriferous average basin beach beam bed rock bench Bendeleben Mountains boiler efficiency bowlders Cape Nome carbon cent Chickaloon chloritic clay clinker coal bed coal field coastal plain Collier combustion-chamber temperature creek bed curve deposits district ditch Drill hole dry coal east efficiency 72 fault feet thick formation Fort Smith fossils furnace Geological Survey geology granite gravel greenstone Gulch Hartshorne hydrogen inches Kigluaik Kigluaik Mountains Kougarok limestone lower Matanuska Matanuska River material miles mineral mining Mountains mouth Neuropteris Niukluk River Nome group Norton Bay Norton Bay regions Number of tests Ophir Creek outcrop pay streak placer gold Port Clarence pound of combustible pounds of dry probably quartz ratio reconnaissance reported River sample sand sandstone schist Seward Peninsula shaft Shale Shale roof shows slope Spadra stream surface tion tributary U. S. Geol upper valley veins
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