A gravity survey of eastern Notre Dame Bay, Newfoundland
A gravity survey was undertaken on the archipelago and adjacent coast of eastern Notre Dame Bay, Newfoundland. A total of 308 gravity stations were occupied with a mean station spacing of 2.5 km, and 9 gravity sub-bases were established. Elevations for the survey were determined by barometric and di...
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Memorial University of Newfoundland
1970
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Online Access: | https://research.library.mun.ca/7162/ https://research.library.mun.ca/7162/1/Miller_HughG.pdf https://research.library.mun.ca/7162/3/Miller_HughG.pdf |
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ftmemorialuniv:oai:research.library.mun.ca:7162 2023-10-01T03:57:34+02:00 A gravity survey of eastern Notre Dame Bay, Newfoundland Miller, Hugh G. 1970 application/pdf https://research.library.mun.ca/7162/ https://research.library.mun.ca/7162/1/Miller_HughG.pdf https://research.library.mun.ca/7162/3/Miller_HughG.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/7162/1/Miller_HughG.pdf https://research.library.mun.ca/7162/3/Miller_HughG.pdf Miller, Hugh G. <https://research.library.mun.ca/view/creator_az/Miller=3AHugh_G=2E=3A=3A.html> (1970) A gravity survey of eastern Notre Dame Bay, Newfoundland. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 1970 ftmemorialuniv 2023-09-03T06:46:16Z A gravity survey was undertaken on the archipelago and adjacent coast of eastern Notre Dame Bay, Newfoundland. A total of 308 gravity stations were occupied with a mean station spacing of 2.5 km, and 9 gravity sub-bases were established. Elevations for the survey were determined by barometric and direct altimetry. The densities of rock samples collected from 223 sites were determined. -- A Bouguer anomaly map was obtained and a polynomial fitting technique was employed to determine the regional contribution to the total Bouguer anomaly field. Residual and regional maps based on a fifth-order polynomial were obtained. Several programs were written for the IBM 360/40 computer used in this and model work. -- Three-dimensional model studies were carried out and a satisfactory overall fit to the total Bouguer field was obtained. Several shallow features of the anomaly maps were found to correlate well with surface bodies, i.e. granite or diorite bodies. Sedimentary rocks had little effect on the gravity field. The trace of the Luke's Arm fault was delineated. -- The following new features were discovered: (1) A major structural discontinuity near Change Islands; (2) A layer of relatively high density (probably basic to ultrabasic rock) at 5 - 10 km depth. Thesis Newfoundland Memorial University of Newfoundland: Research Repository Notre Dame Bay ENVELOPE(-54.998,-54.998,49.750,49.750) Change Islands ENVELOPE(-54.415,-54.415,49.667,49.667) Luke's Arm ENVELOPE(-54.848,-54.848,49.517,49.517) |
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Memorial University of Newfoundland: Research Repository |
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ftmemorialuniv |
language |
English |
description |
A gravity survey was undertaken on the archipelago and adjacent coast of eastern Notre Dame Bay, Newfoundland. A total of 308 gravity stations were occupied with a mean station spacing of 2.5 km, and 9 gravity sub-bases were established. Elevations for the survey were determined by barometric and direct altimetry. The densities of rock samples collected from 223 sites were determined. -- A Bouguer anomaly map was obtained and a polynomial fitting technique was employed to determine the regional contribution to the total Bouguer anomaly field. Residual and regional maps based on a fifth-order polynomial were obtained. Several programs were written for the IBM 360/40 computer used in this and model work. -- Three-dimensional model studies were carried out and a satisfactory overall fit to the total Bouguer field was obtained. Several shallow features of the anomaly maps were found to correlate well with surface bodies, i.e. granite or diorite bodies. Sedimentary rocks had little effect on the gravity field. The trace of the Luke's Arm fault was delineated. -- The following new features were discovered: (1) A major structural discontinuity near Change Islands; (2) A layer of relatively high density (probably basic to ultrabasic rock) at 5 - 10 km depth. |
format |
Thesis |
author |
Miller, Hugh G. |
spellingShingle |
Miller, Hugh G. A gravity survey of eastern Notre Dame Bay, Newfoundland |
author_facet |
Miller, Hugh G. |
author_sort |
Miller, Hugh G. |
title |
A gravity survey of eastern Notre Dame Bay, Newfoundland |
title_short |
A gravity survey of eastern Notre Dame Bay, Newfoundland |
title_full |
A gravity survey of eastern Notre Dame Bay, Newfoundland |
title_fullStr |
A gravity survey of eastern Notre Dame Bay, Newfoundland |
title_full_unstemmed |
A gravity survey of eastern Notre Dame Bay, Newfoundland |
title_sort |
gravity survey of eastern notre dame bay, newfoundland |
publisher |
Memorial University of Newfoundland |
publishDate |
1970 |
url |
https://research.library.mun.ca/7162/ https://research.library.mun.ca/7162/1/Miller_HughG.pdf https://research.library.mun.ca/7162/3/Miller_HughG.pdf |
long_lat |
ENVELOPE(-54.998,-54.998,49.750,49.750) ENVELOPE(-54.415,-54.415,49.667,49.667) ENVELOPE(-54.848,-54.848,49.517,49.517) |
geographic |
Notre Dame Bay Change Islands Luke's Arm |
geographic_facet |
Notre Dame Bay Change Islands Luke's Arm |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
https://research.library.mun.ca/7162/1/Miller_HughG.pdf https://research.library.mun.ca/7162/3/Miller_HughG.pdf Miller, Hugh G. <https://research.library.mun.ca/view/creator_az/Miller=3AHugh_G=2E=3A=3A.html> (1970) A gravity survey of eastern Notre Dame Bay, Newfoundland. Masters thesis, Memorial University of Newfoundland. |
op_rights |
thesis_license |
_version_ |
1778529140400455680 |