United States Geological Survey Yearbook |
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Page 18
Through marine geologic surveys , the dynamic aspects of plate tectonics can be
studied : the continual creation of the Earth's new crust at the midocean
spreading centers ; the formation of volcanic arcs , basins , and trenches where
the ...
Through marine geologic surveys , the dynamic aspects of plate tectonics can be
studied : the continual creation of the Earth's new crust at the midocean
spreading centers ; the formation of volcanic arcs , basins , and trenches where
the ...
Page 19
These investigations focus on processes that influence the formation of
petroleum and mineral deposits . ... of concern are the shape and sedimentologic
character of major marine sedimentary deposits and the mechanics of how they
formed .
These investigations focus on processes that influence the formation of
petroleum and mineral deposits . ... of concern are the shape and sedimentologic
character of major marine sedimentary deposits and the mechanics of how they
formed .
Page 20
For the first time , geologists can witness a massivesulfide type of deposit actually
being formed on the sea floor . ... In addition to these rapidly forming sulfide
deposits , manganese crusts recovered from seamounts in the Pacific Ocean
contain ...
For the first time , geologists can witness a massivesulfide type of deposit actually
being formed on the sea floor . ... In addition to these rapidly forming sulfide
deposits , manganese crusts recovered from seamounts in the Pacific Ocean
contain ...
Page 62
Puerto Rico , like the other islands of the Greater Antilles , Cuba , Hispaniola ,
and Jamaica , originally formed along a belt of submarine volcanoes that later
were raised above the sea in the form of an island arc . The oldest rocks of the
island ...
Puerto Rico , like the other islands of the Greater Antilles , Cuba , Hispaniola ,
and Jamaica , originally formed along a belt of submarine volcanoes that later
were raised above the sea in the form of an island arc . The oldest rocks of the
island ...
Page 79
Formation St. Peter Sandstone ORDOVICIAN Prairie du chien Group Jordan
Sandstone CAMBRIAN St. - Lawrence Formation スーパースプーンハウス
Franconia Formation Eitvizitis Ironton and Galesville Sandstones Eau Claire
Formation ...
Formation St. Peter Sandstone ORDOVICIAN Prairie du chien Group Jordan
Sandstone CAMBRIAN St. - Lawrence Formation スーパースプーンハウス
Franconia Formation Eitvizitis Ironton and Galesville Sandstones Eau Claire
Formation ...
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Bibliographic information
| Title | United States Geological Survey Yearbook |
| Author | Geological Survey (U.S.) |
| Publisher | The Survey, 1983 |
| Original from | University of Minnesota |
| Digitized | 15 Jun 2009 |
| Export Citation | BiBTeX EndNote RefMan |