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 14
... Sandstone . 194 The Shenandoah Limestone . 194 The Newark Formation . 194 Igneous Rocks 195 The Basic Volcanics .. 195 The Acid Volcanics .. 195 The Diabase 195 PAGE THE APPALACHIAN REGION ... 196 Sedimentary Rocks 198 The 14 CONTENTS.
... Sandstone . 194 The Shenandoah Limestone . 194 The Newark Formation . 194 Igneous Rocks 195 The Basic Volcanics .. 195 The Acid Volcanics .. 195 The Diabase 195 PAGE THE APPALACHIAN REGION ... 196 Sedimentary Rocks 198 The 14 CONTENTS.
Seite 15
... Sandstones and Shales .. 198 The Loudon Formation .... 198 The Weverton Formation . 199 The Harpers Formation ... The ... Sandstone .. The Elbrook Limestone .... 201 201 The Conococheague Limestone . 201 The Ordovician Period 201 Lower ...
... Sandstones and Shales .. 198 The Loudon Formation .... 198 The Weverton Formation . 199 The Harpers Formation ... The ... Sandstone .. The Elbrook Limestone .... 201 201 The Conococheague Limestone . 201 The Ordovician Period 201 Lower ...
Seite 25
... sandstone ..... 238 85. Map showing Lower Cretaceous waters ... 86. Map showing Upper Cretaceous waters . 241 244 87. Map showing Eocene waters .... 246 88. Map showing Lower Miocene waters ... 248 89. Map showing Upper Miocene waters ...
... sandstone ..... 238 85. Map showing Lower Cretaceous waters ... 86. Map showing Upper Cretaceous waters . 241 244 87. Map showing Eocene waters .... 246 88. Map showing Lower Miocene waters ... 248 89. Map showing Upper Miocene waters ...
Seite 70
... sandstones and conglomerates of Mesozoic age and intruded by the diabase dikes of the same period . The threefold division of the Appalachian Region corresponds approxi- mately to the threefold division in the sequence of the Paleozoic ...
... sandstones and conglomerates of Mesozoic age and intruded by the diabase dikes of the same period . The threefold division of the Appalachian Region corresponds approxi- mately to the threefold division in the sequence of the Paleozoic ...
Seite 96
... sandstone ridges deep gorges result , but in the softer beds the channels are frequently wider , with low banks on either side . ECONOMIC PHYSIOGRAPHY OF THE APPALACHIAN REGION LINES OF COMMUNICATION . - The obstacles offered by the ...
... sandstone ridges deep gorges result , but in the softer beds the channels are frequently wider , with low banks on either side . ECONOMIC PHYSIOGRAPHY OF THE APPALACHIAN REGION LINES OF COMMUNICATION . - The obstacles offered by the ...
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Häufige Begriffe und Wortgruppen
30 feet Allegany 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 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 water horizons Waterworks western Wicomico Worcester County
Beliebte Passagen
Seite 65 - ... thereon shall be fully discharged. The credit of the State shall not in any manner be given, or loaned to, or in aid of any individual, association or corporation; nor shall the General Assembly have the power in any mode to involve the State in the construction of Works of Internal Improvement, nor in granting any aid thereto, which shall involve the faith or credit of the State...
Seite 158 - July, the twenty-fifth day of December, commonly called Christmas Day, and any day appointed or recommended by the governor of this State or the president of the United States as a day of fasting and prayer or thanksgiving...
Seite 33 - Clark organized and directed the preparation of the official State exhibits of Maryland mineral resources at the Buffalo. Charleston, St. Louis. Jamestown, and San Francisco Expositions in 1901, 1902, 1904, 1907, and 1915. These exhibits attracted much attention at the time and received a large number of conspicuous awards. These exhibits have been permanently installed as a State mineral exhibit at the statehouse in Annapolis.
Seite 34 - Clark's administrative ability and professional attainments are largely responsible for the extensive development of Maryland's mineral resources, and his loss will be severely felt in all quarters. He was always keenly interested in the educational value, of the work of the various State bureaus which he directed and had just finished writing a geography of Maryland for school-teachers.
Seite 461 - ... well illustrated by the following records. The knitting company has four additional wells, 281, 323, and 325 feet deep. They are only cased a few feet, but their water is said to come from 60, 160, and 275 feet. In all four the water heads to within from 3 to 8 feet of the surface. The 60-foot and 160-foot horizons yield 18 gallons per minute each. The horizon around 275 feet yields in one well 200 gallons per minute, and in the other 116 gallons per minute. The Hagerstown Brewing Company has...
Seite 34 - ... extensive development of Maryland's mineral resources and his loss will be severely felt in all quarters. He was always keenly interested in the educational value of the work of the various state bureaus which he directed, and had just finished writing a geography of Maryland for school teachers. At the time of his death he was engaged in writing a report on the underground waters of the state and another on the coals.
Seite 66 - The most ancient rocks which made up the earth's crust as well as those still in the process of deposition are here found, while between these wide limits there is hardly an important geological epoch which is not represented.
Seite 158 - Special-delivery mail is delivered on holidays, but delivery service is not given on letter carrier or rural routes. The following holidays are observed: (1) New Year's Day, January 1. (2) Washington's Birthday, February 22. (3) Memorial Day, May 30. (4) Independence Day, July 4. (5) Labor Day, first Monday in September. (6) Veterans
Seite 184 - ... deposits in Harford County. This formation is limited on either side by igneous rocks. A northern outlier a mile or less in width extending for several miles southwestward from the Susquehanna River probably represents a detached portion of this larger mass lying a little to the south. The second area of Baltimore gneiss is found in an anticlinal dome, 15 miles long and 5 miles broad, lying on either side of the Northern Central Railroad 10 miles south of the Mason and Dixon line and 20 miles...
Seite 169 - Alleghanies to the sea, and is divided into three more or less sharply defined regions known as the Coastal Plain, the Piedmont Plateau, and the Appalachian Region. These three districts follow the Atlantic border of the United States in three belts of varying width from New England southward to the Gulf of Mexico.