A gravity profile across Newfoundland
A gravity profile, with 0.8 km station spacing, has been established along the Trans-Canada highway between Port-aux-Basques and Come-by-Chance, Newfoundland. A modified "one-base" barometric method gave improved elevation results, yielding a standard deviation which is less than one-half...
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
Memorial University of Newfoundland
1970
|
| Subjects: | |
| Online Access: | https://research.library.mun.ca/7227/ https://research.library.mun.ca/7227/1/Weir_HarveyC.pdf https://research.library.mun.ca/7227/3/Weir_HarveyC.pdf |
| Summary: | A gravity profile, with 0.8 km station spacing, has been established along the Trans-Canada highway between Port-aux-Basques and Come-by-Chance, Newfoundland. A modified "one-base" barometric method gave improved elevation results, yielding a standard deviation which is less than one-half that associated with the traditional "one-base" method. Techniques have been devised to facilitate the determination of various model representation errors, and for making end corrections. A "winding-route" apparent anomaly effect has been studied. -- A qualitative profile interpretation has suggested the presence of unmapped gypsum deposits (south-western Newfoundland) and intrusive bodies (at several locations along the route). A detailed study between Notre Dame Junction and Traytown shows the Ackley batholith to be, in cross-section along the route, a funnel-shaped lopolith and this region to be underlain by an intermediate to basic layer. |
|---|