A computer-oriented system for logging, annotating, tabulating, and plotting marine geophysical and geological data collected by the Pacific-Arctic Branch of the Office of Marine Geology, U.S. Geological Survey

1978 ◽  
Author(s):  
Bradley R. Larsen ◽  
A. K. Cooper ◽  
G.A. McHendrie ◽  
J.V. Gardner
Keyword(s):  
Geological Survey ◽  
Marine Geology ◽  
Geological Data ◽  
The Pacific ◽  
Oriented System

scholarly journals Subsidence by liquefaction-fluidization in man-made strata around Tokyo bay, Japan: from geological survey on damaged part at the 2011 off the Pacific Coast of Tohoku Earthquake

2015 ◽  
Vol 372 ◽  
pp. 221-226
Author(s):  
O. Kazaoka ◽  
S. Kameyama ◽  
K. Shigeno ◽  
Y. Suzuki ◽  
M. Morisaki ◽  
...  
Keyword(s):  
Pacific Coast ◽  
Tohoku Earthquake ◽  
Geological Survey ◽  
Japan Meteorological Agency ◽  
Tokyo Bay ◽  
Great Earthquake ◽  
Reclaimed Land ◽  
Chiba Prefecture ◽  
Detailed Classification ◽  
The Pacific

Abstract. Geological disaster by liquefaction-fluidization happened on southern part of the Quaternary Paleo-Kanto submarine basin at the 2011 Earthquake off the Pacific Coast of Tohoku. Liquefaction-fluidization phenomena occurred mainly in man-made strata over shaking 5+ intensity of Japan Meteorological Agency scale. Many subsided spots, 10–50 m width, 20–100 m length and less than 1 m depth, by liquefaction-fluidization distributed on reclaimed land around northern Tokyo bay. Large amount of sand and groundwater spouted out in the terrible subsided parts. But there are little subsidence and no jetted sand outside the terrible subsided part. Liquefaction-fluidization damaged part at the 1987 earthquake east off Chiba prefecture re-liquefied and fluidized in these parts at the 2011 great earthquake. The damaged area were more wide on the 2011 earthquake than the 1987 quake. Detailed classification maps of subsidence by liquefaction-fluidization on the 2011 grate earthquake were made by fieldwork in Chiba city around Tokyo bay. A mechanism of subsidence by liquefaction-fluidization in man-made strata was solved by geological survey with continuous large box cores on the ACE Liner and large relief peals of the cores at a typical subsided part.

scholarly journals A Balto-Scandian Middle Cambrian fauna from Peary Land, North Greenland

1988 ◽  
Vol 137 ◽  
pp. 118-118
Author(s):  
T.P Fletcher ◽  
A.K Higgins ◽  
J.S Peel
Keyword(s):  
North America ◽  
Field Work ◽  
First Record ◽  
Geological Survey ◽  
Northern Coast ◽  
Middle Cambrian ◽  
The Pacific ◽  
Cambrian Trilobite ◽  
Inland Ice ◽  
North Greenland

The first record of Middle Cambrian faunas of 'Atlantic' affinity from the Franklinian basin sequence of North Greenland was made by Poulsen (1969) who noted that previously described Greenland faunas were of 'Pacific' type. Field work by the Geological Survey of Greenland during the last decade has established that 'Atlantic' faunas are widespread in more outer shelfsequences along the northern coast of North Greenland while the 'Pacific' faunas occur within inner shelfsequences more to the south, near the margin of the Inland Ice. North Greenland preserves both faunas in dose geographical juxtaposition in only slightly tectonised geological settings. Thus, alatest Middle Cambrian trilobite fauna described by Robison (in press) from the Holm Dal Formation in an area some 40 km south of the presently discussed locality (and more inner shelf) includes a mixture of polymeroids characteristic of the Cedaria Zone of North America and agnostoids characteristic of the Lejopyge laevigata Zone of the Swedish standard zonation.

scholarly journals 3-DIMENSIONAL GEOLOGICAL MAPPING AND MODELING ACTIVITIES AT THE GEOLOGICAL SURVEY OF NORWAY

2015 ◽  
Vol XL-2/W4 ◽  
pp. 11-16 ◽  
Author(s):  
A. Jarna ◽  
A. Bang-Kittilsen ◽  
C. Haase ◽  
I. H. C. Henderson ◽  
F. Høgaas ◽  
...  
Keyword(s):  
3D Visualization ◽  
Three Dimensional ◽  
Mineral Resources ◽  
Geological Mapping ◽  
Geological Survey ◽  
Marine Geology ◽  
Data Infrastructure ◽  
3 Dimensional ◽  
3D Data ◽  
Wide Range

Geology and all geological structures are three-dimensional in space. Geology can be easily shown as four-dimensional when time is considered. Therefore GIS, databases, and 3D visualization software are common tools used by geoscientists to view, analyse, create models, interpret and communicate geological data. The NGU (Geological Survey of Norway) is the national institution for the study of bedrock, mineral resources, surficial deposits and groundwater and marine geology. The interest in 3D mapping and modelling has been reflected by the increase of number of groups and researches dealing with 3D in geology within NGU. This paper highlights 3D geological modelling techniques and the usage of these tools in bedrock, geophysics, urban and groundwater studies at NGU, same as visualisation of 3D online. The examples show use of a wide range of data, methods, software and an increased focus on interpretation and communication of geology in 3D. The goal is to gradually expand the geospatial data infrastructure to include 3D data at the same level as 2D.

The Shumards in Texas

1994 ◽  
Vol 13 (2) ◽  
pp. 143-153
Author(s):  
Keith Young
Keyword(s):  
Civil War ◽  
Fault Zone ◽  
Geological Survey ◽  
Benjamin Franklin ◽  
The Pacific ◽  
Pacific Railroad

Benjamin Franklin Shumard was appointed State Geologist of Texas in 1858. His brother, George Getz Shumard, served as his Assistant State Geologist; both were experienced field geologists. Benjamin Shumard had served in federally sponsored surveys of Wisconsin, Minnesota, and Iowa conducted by Dale David Owen, in Oregon and Washington by John Evans, and in the Missouri Geological Survey. George Shumard had accompanied Captain Randolph B. Marcy into Texas on two of his federally sponsored expeditions of exploration (the Pacific Railroad Survey along the 32nd parallel) to drill wells exploring for water east of the Guadalupe Mountains. George Shumard gave most of the fossils he collected to his brother for description and publication. Although the Geological and Agricultural Survey of Texas ended with the Civil War, the Shumards made three principal contributions to the geology of Texas: 1. They advanced the knowledge of the State's Cretaceous rocks, even though they did not recognize the Balcones Fault Zone and arranged part of the section erroneously; 2. They determined that not all mountains in the Southwest were formed around granite cores; and 3. They discovered the marine Permian in Texas.

Marine geology program of the U.S. geological survey

1986 ◽  
Vol 10 (3-4) ◽  
pp. 369-371
Author(s):  
Terry W. Offield
Keyword(s):  
Geological Survey ◽  
Marine Geology ◽  
The U.S

Marine Geology and Oceanography of the Pacific Manganese Nodule Province

1981 ◽  
Vol 28 (3) ◽  
pp. 241-242
Author(s):  
G.V. Chilingar ◽  
H.J. Bissell
Keyword(s):  
Manganese Nodule ◽  
Marine Geology ◽  
The Pacific
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