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D. J. Taylor

Publications and source records attributed to D. J. Taylor.

8 recordsLinked to original sources

Regional seismic lines reprocessed using post-stack processing techniques: National Petroleum Reserve, Alaska

This CD-ROM contains stacked, migrated, 2-Dimensional seismic reflection data and associated support information for 22 regional seismic lines (3,470 line-miles) recorded in the National Petroleum Reserve – Alaska (NPRA) from 1974 through 1981. Together, these lines constitute about one-quarter of the seismic data collected as part of the Federal Government’s program to evaluate the petroleum potential of the Reserve. The regional lines, which form a grid covering the entire NPRA, were created by combining various individual lines recorded in different years using different recording parameters. These data were reprocessed by the USGS using modern, post-stack processing techniques, to create a data set suitable for interpretation on interactive seismic interpretation computer workstations. Reprocessing was done in support of ongoing petroleum resource studies by the USGS Energy Program. The CD-ROM contains the following files: 1) 22 files containing the digital seismic data in standard, SEG-Y format; 2) 1 file containing navigation data for the 22 lines in standard SEG-P1 format; 3) 22 small scale graphic images of each seismic line in Adobe Acrobat ® PDF format; 4) a graphic image of the location map, generated from the navigation file, with hyperlinks to the graphic images of the seismic lines; 5) an ASCII text file with cross-reference information for relating the sequential trace numbers on each regional line to the line number and shotpoint number of the original component lines; and 6) an explanation of the processing used to create the final seismic sections (this document). The SEG-Y format seismic files and SEG-P1 format navigation file contain all the information necessary for loading the data onto a seismic interpretation workstation.

Alaska

International phase of ocean drilling: Seismic Line 1 demultiplexed data, Cape Hatteras to Mid-Atlantic Ridge

Introduction This CD-ROM is part of a 39 disc collection containing the demultiplexed seismic data from a 3400 km-long multichannel seismic-reflection profile extending from Cape Hatteras, N.C., to the rift valley of the Mid-Atlantic Ridge. The data were collected in 1974 as part of the International Phase of Ocean Drilling (IPOD) which was jointly funded by the U.S. Geological Survey (USGS) and the National Science Foundation's Deep Sea Drilling Project (DSDP).

Data Series

Examples of deep-water-bottom multiple dereverberation techniques applied to seismic-reflection data from the Atlantic Outer Continental Shelf

Seismic-reflection data recorded in deep water over the Atlantic Outer Continental Shelf are often dominated by multiply-reflected seismic energy. This energy reverberates between the surface of the water and the seafloor (or other strong reflectors), and makes portions of the seismic data completely useless. Several different data-processing techniques can be applied to partially suppress these multiples and enhance the interpretability of the data. These techniques include (1) the three-point operator, (2) predictive deconvolution, (3) near-trace muting, (4) spatially variant bandpass filters, (5) Nth root stack, and (6) trace distance weighting. Application of these methods to several seismic lines indicates that trace distance weighting is the most useful method studied for suppressing deep-water-bottom multiples for data from the Atlantic Outer Continental Shelf.

Open-File Report

Report of the International Board of Inquiry for the Great Lakes Fisheries

This is the report of the International Board of Inquiry relative to the preservation and development of the Great Lakes fisheries as provided by an exchange of notes between Canada and the United States on February 29, 1940. The report aims to present in a very brief manner the background of the establishment of the Board, its program, and the fishery problems that confronted it with particular reference to the international point of view. These problems relate to the following subjects: statistics, the take of fish, fluctuations in the take, development and decline of particular fisheries, extinction and introduction of species, migration and local stock of fish, variety and changes in water conditions, fishing gear, overfishing, sport fishing versus food fish, fish culture and investigations. There is also a supplemental report prepared by the United States members of the Board (see Contribution #101).

Report