The United States Geological Survey in Alaska: Accomplishments During 1980 |
Common terms and phrases
Alaska abs Alaska Range Alaska-Accomplishments during 1978 anomalous Arctic basin batholith belt Bering Sea biotite Brooks Range Cenozoic Chatham Strait chert Chichagof Chichagof Island Churkin conglomerate Creek Cretaceous deposits Devonian earthquake Endicott Group facies Fairbanks FIGURE Formation Fortress Mountain geochemical geologic map Geological Society Geological Survey Circular Geological Survey Open-File Geophysical Glacier grains granite Gulf of Alaska Hopkins Jurassic Kelp Bay Group KILOMETERS Lake late limestone mafic marine Medfra Mesozoic mineral Mississippian monazite northern occur ophiolite outcrop paleomagnetic Paleozoic Patton percent Petroleum Geologists Bulletin Plafker plagioclase plutonic Precambrian quartz Quaternary REFERENCES CITED region samples sandstone schist sediment sedimentary rocks seismic shale showing Society of America southeastern Alaska southern Alaska stratigraphic Survey Circular 804-B Survey in Alaska-Accomplishments Survey Open-File Report Survey Professional Paper Tailleur Tanana tectonic terrane Tertiary Triassic turbidites U.S. Geological Survey United States Geological uplift Upper volcanic rocks Yukon zone