Report, Band 10Johns Hopkins Press, 1918 CONTENTS.--Vol. I (1897)--Vol. II (1898)--Vol. III (1899)--Vol. IV (1902)--Vol. V (1905)--Vol. VI (1906)--Vol. VII (1908)--Vol. VIII (1909)--Vol. IX (1911)--Vol. X (1918)--Vol. XI (1922)--Vol. XII (1928)--Vol. XIII (1937)--Vol. 14 (1941) |
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Seite 109
... thickness . It is chiefly found in Calvert and Charles counties , where it has been more or less extensively worked at the mouth of Lyon's Creek on the Patuxent , and at Pope's Creek on the Potomac River . This remarkable deposit is ...
... thickness . It is chiefly found in Calvert and Charles counties , where it has been more or less extensively worked at the mouth of Lyon's Creek on the Patuxent , and at Pope's Creek on the Potomac River . This remarkable deposit is ...
Seite 186
... thickness , however , being quite slight . Some of these bands are highly quartzose , resembling a micaceous quartzite ; others are rich in biotite or hornblende , producing dark schists , which in a hand specimen are indistinguishable ...
... thickness , however , being quite slight . Some of these bands are highly quartzose , resembling a micaceous quartzite ; others are rich in biotite or hornblende , producing dark schists , which in a hand specimen are indistinguishable ...
Seite 198
... thicker deposits are found in narrow synclines upon the surface of the pre - Cambrian rocks ; the thinner and finer ... thickness of the formation is very variable , ranging from 198 SURFACE AND UNDERGROUND WATER RESOURCES Sedimentary ...
... thicker deposits are found in narrow synclines upon the surface of the pre - Cambrian rocks ; the thinner and finer ... thickness of the formation is very variable , ranging from 198 SURFACE AND UNDERGROUND WATER RESOURCES Sedimentary ...
Seite 199
... thickness of the Harpers formation is difficult to determine , owing to the absence of any complete section of it . Its outcrops are everywhere included between faults which have cut off intermediate thicknesses . It has been estimated ...
... thickness of the Harpers formation is difficult to determine , owing to the absence of any complete section of it . Its outcrops are everywhere included between faults which have cut off intermediate thicknesses . It has been estimated ...
Seite 200
... thickness of about 500 feet . The Antietam sandstone shows little alteration in its typical area , but east of Catoctin Mountain there are some very siliceous schists that may possibly represent it . The more calcareous varieties ...
... thickness of about 500 feet . The Antietam sandstone shows little alteration in its typical area , but east of Catoctin Mountain there are some very siliceous schists that may possibly represent it . The more calcareous varieties ...
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Häufige Begriffe und Wortgruppen
30 feet Allegany County Anne Arundel County Aquia Average elevation Baltimore beds beneath the surface Blue Ridge Calvert Capacity of reservoir carried to reservoir Cecil County Chesapeake Bay Choptank City Clark Hoshall Coastal Plain Creek Cretaceous crystalline rocks Cumberland Curtis Bay Daily consumption Delaware deposits Diameter district Downin drilled Eastern Shore Elevation above source elevation above town Eocene feet beneath feet deep feet in depth Fire hydrants flow formation Frederick gallons per minute Garrett County Geological glauconite gneiss gravel gray Hagerstown Hard head inches iron limestone lower Magothy Mary's Maryland Matawan miles Miocene Mountain Municipality Nanjemoy Patapsco Patuxent peneplain Percentage of population Piedmont Plateau Pleistocene population supplied Potomac River Prince George's County Public supply sand sandstone sandy clay shales shallow Soft southern Sparrows Point springs streams SURFACE WATERS surface yields UNDERGROUND WATERS Upper valleys Washington water horizons Waterworks western Wicomico Worcester County