<p> A baked contact test was carried out between the Otto
Stock, dated at 2114 Ma by Bell and Blenkinsop (1976) and
its host rock, represented by the magnetically stable,
Matachewan Dyke swarm dated at 2690 Ma by Gates and Hurley
(1973). Paleomagnetic results from this study confirm the
recently revised dating or the Otto Stock and Matachewan
dykes at 2680±1 Ma and 2452+3/-2 Ma, resectively (Corru
et.al. 1989; Heaman, 1988) . </p> <p> Matachewan dykes both distant and within the contact
aureole or the Otto Stock all carry the same southwesterly
shallow characteristic Matachewan direction or magnetization.
The absense or an Otto Stock overprint on the
Matachewan dykes implies that the intrusion or the Otto
Stock must have occurred before the intrusion or the
Matachewan Dyke swarm. </p> <p> The relative ages or the Otto Stock and Matachewan dyke
magnetizations are inconsistent with the conventional
early Proterzoic apparent polar wander path (APWP) for North
America, which decreases in age from the Matachewan dyke
pole t o the Otto Stock pole. It can be concluded that this
part or the APWP is running backwards and must now be
redefined. </p> / Thesis / Bachelor of Science (BSc)
| Identifer | oai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/19255 |
| Date | 04 1900 |
| Creators | Neilson, Douglas |
| Contributors | Hale, C. J., Geology |
| Source Sets | McMaster University |
| Language | English |
| Detected Language | English |
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