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Page 367, results 9151 - 9175

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Coal fields and federal lands of the conterminous United States
Laura Biewick
1997, Open-File Report 97-461
The map depicts the relationship of coal and public lands in the conterminous U. S. Multiple GIS layers are being created for the purpose of deriving estimates of how much coal is owned and administered by the Federal government. Federal coal areas have a profound effect on land-management decisions. Regulatory...
Streamflow characteristics of streams in the Upper Red River of the North basin, North Dakota, Minnesota, and South Dakota
Gregg J. Wiche, Tara Williams-Sether
1997, Open-File Report 97-416
Statistical summaries of streamflow data for all active and inactive gaging stations for the Red River Basin upstream of and including Halstad, Minnesota, are presented in this report. The summaries for each streamflow-gaging station include (1) manuscript (station description), (2) graph of the annual mean discharge for the period of...
1996 Volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory
Christina A. Neal, Robert G. McGimsey
1997, Open-File Report 97-433
During 1996, the Alaska Volcano Observatory (AVO) responded to eruptive activity, anomalous seismicity, or suspected volcanic activity at 10 of the approximately 40 active volcanic centers in the state of Alaska. As part of a formal role in KVERT (the Kamchatkan Volcano Eruption Response Team), AVO staff also disseminated information about...
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Use of a modified ultrasonic nebulizer for the analysis of low ionic-strength water by inductively coupled optical emission spectrometry
Carl M. Harris, Charles J. Litteral, Donna L. Damrau
1997, Open-File Report 97-382
The U.S. Geological Survey National Water Quality Laboratory has developed a method for the determination of dissolved calcium, iron, magnesium, manganese, silica, and sodium using a modified ultrasonic nebulizer sample-introduction system to an inductively coupled plasma-optical emission spectrometer. The nebulizer's spray chamber has been modified to avoid carryover and memory...