Paleomagnetism of the Caldwell lavas, Eastern Townships, Québec.
Forty two oriented samples (97 specimens) were obtained from 17<br />sites in metavolcanic rocks from the Caldwell Group of the Appalachians<br />of Southern Québec (longitude: 71u00'-71"30' W, latitude: 46°00'-46"10'N).<br />Th...
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| Format: | Article |
| Language: | English |
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
1978-06-01
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| Series: | Annals of Geophysics |
| Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/4749 |
| _version_ | 1819082299495415808 |
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| author | M. K. SEGUIN |
| author_facet | M. K. SEGUIN |
| author_sort | M. K. SEGUIN |
| collection | DOAJ |
| description | Forty two oriented samples (97 specimens) were obtained from 17<br />sites in metavolcanic rocks from the Caldwell Group of the Appalachians<br />of Southern Québec (longitude: 71u00'-71"30' W, latitude: 46°00'-46"10'N).<br />These metavolcanics of Lower Cambrian age are massive or pillowed lavas<br />of andesitic and mainly basaltic composition metamorphosed to the<br />sub-greenschist facies. Magnetite and occasionally hematite are the frequent<br />magnetic memory carrier.<br />In order to obtain some pertinent information relative to the stability<br />of the remanent magnetization component, stepwise alternating field<br />demagnetization was conducted on 35% of the specimens and the others<br />were demagnetized at an optimum alternating field. After AF treatment,<br />the paleopole position of the tilted formation from 16 localities is 148°E,<br />43°N (dp=11.3°, dm = 22.4°). After omission of 3 localities for which<br />a95>30°, the new paleopole position obtained is 173°E, 26°N. This formation<br />of Early Cambrian age is characterized by a reversed polarity. |
| first_indexed | 2024-12-21T20:14:28Z |
| format | Article |
| id | doaj.art-4412534f35014bf39993ba3920e03793 |
| institution | Directory Open Access Journal |
| issn | 1593-5213 2037-416X |
| language | English |
| last_indexed | 2024-12-21T20:14:28Z |
| publishDate | 1978-06-01 |
| publisher | Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
| record_format | Article |
| series | Annals of Geophysics |
| spelling | doaj.art-4412534f35014bf39993ba3920e037932022-12-21T18:51:39ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X1978-06-0131119720810.4401/ag-4749Paleomagnetism of the Caldwell lavas, Eastern Townships, Québec.M. K. SEGUINForty two oriented samples (97 specimens) were obtained from 17<br />sites in metavolcanic rocks from the Caldwell Group of the Appalachians<br />of Southern Québec (longitude: 71u00'-71"30' W, latitude: 46°00'-46"10'N).<br />These metavolcanics of Lower Cambrian age are massive or pillowed lavas<br />of andesitic and mainly basaltic composition metamorphosed to the<br />sub-greenschist facies. Magnetite and occasionally hematite are the frequent<br />magnetic memory carrier.<br />In order to obtain some pertinent information relative to the stability<br />of the remanent magnetization component, stepwise alternating field<br />demagnetization was conducted on 35% of the specimens and the others<br />were demagnetized at an optimum alternating field. After AF treatment,<br />the paleopole position of the tilted formation from 16 localities is 148°E,<br />43°N (dp=11.3°, dm = 22.4°). After omission of 3 localities for which<br />a95>30°, the new paleopole position obtained is 173°E, 26°N. This formation<br />of Early Cambrian age is characterized by a reversed polarity.http://www.annalsofgeophysics.eu/index.php/annals/article/view/4749 |
| spellingShingle | M. K. SEGUIN Paleomagnetism of the Caldwell lavas, Eastern Townships, Québec. Annals of Geophysics |
| title | Paleomagnetism of the Caldwell lavas, Eastern Townships, Québec. |
| title_full | Paleomagnetism of the Caldwell lavas, Eastern Townships, Québec. |
| title_fullStr | Paleomagnetism of the Caldwell lavas, Eastern Townships, Québec. |
| title_full_unstemmed | Paleomagnetism of the Caldwell lavas, Eastern Townships, Québec. |
| title_short | Paleomagnetism of the Caldwell lavas, Eastern Townships, Québec. |
| title_sort | paleomagnetism of the caldwell lavas eastern townships quebec |
| url | http://www.annalsofgeophysics.eu/index.php/annals/article/view/4749 |
| work_keys_str_mv | AT mkseguin paleomagnetismofthecaldwelllavaseasterntownshipsquebec |