Hydrogeologic Framework of the Willamette Lowland Aquifer System, Oregon and Washington, Ausgabe 1424,Teil 2U.S. Government Printing Office, 1998 - 82 Seiten |
Inhalt
Foreword | B-1 |
FIGURE | B-3 |
Hydrogeologic Framework of Aquifer System | B-16 |
Urheberrecht | |
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Häufige Begriffe und Wortgruppen
15 20 KILOMETERS alluvial fans alluvium altitude APR JUL AUG Basemap source information basement confining unit Calapooia River Cascade Range central Willamette Valley chloride CLACKAMAS Clark County Coast Range Columbia River basalt DEC FEB APR DEPTH TO WATER drainage estimated evapotranspiration fault FEB APR JUL feet Open French Prairie ft thick ft/d ft³/s ft³/s/mi Gannett and Caldwell ground water ground-water flow ground-water recharge hydraulic conductivity in/yr irrigation Lake mapped McKenzie mi² Molalla overlying percent Portland Basin Pudding River regional hydrogeologic units River basalt aquifer River Basalt Group Salem fan saline sand and gravel Santiam River sea level section M1-M1 sediment sedimentary seepage simulated South Santiam South Santiam River southern Willamette Valley specific yield specific-capacity Study area boundary Tertiary marine rocks tributaries Tualatin Basin U.S. Geological Survey underlying Unnamed vertical WASHINGTON OREGON water levels water table Willamette aquifer Willamette confining unit Willamette River Willamette Silt unit YAMHILL