New K–Ar age determinations on rocks from the east coast of Labrador

1969 ◽  
Vol 6 (2) ◽  
pp. 340-344 ◽  
Author(s):  
R. L. Grasty ◽  
J. C. Rucklidge ◽  
W. A. Elders

In a search for Tertiary dikes, rocks were collected along part of the east coast of Labrador. K–Ar age determinations on some of these rocks suggest that the Grenville Front passes out to sea along the north side of Groswater Bay.

2019 ◽  
Vol 46 (4) ◽  
pp. 370-384
Author(s):  
A. N. Babakov ◽  
B. V. Chubarenko

Systematization of analyzed schemes of alongshore mobilization of sediments off the east coast of the Gulf of Danzig was conducted. Significant differences in the structure and localization of the countercurrent flows in convergence zones were detected. The results of near-bottom steady-state measurements of currents in the vicinity of the Baltic Canal in the depth range 6–16 m demonstrated that >6-m/s winds cause the alongshore currents to be reoriented in the direction of the alongshore wind component. The morphodynamic accumulative criterion (the filling of the re-entrant angle and abrasion in the obstacle-shadow zone) and “abrasive” criterion (the orientation of abrasion kettle holes at the ends of breakwalls) were examined. The abrasive criterion is apparently preferred over the accumulative one during transportation of sediments along segments of the coast where waves approach the coast at normal or near-normal angles. Peculiarities of the mechanism of the northward transportation of sediments, bypassing Baltiysk backwalls and changing from abrasive to accumulative criteria for different segments of the coast, are demonstrated. Two schema representing the opposite Vistula and Sambiysky alongshore flows of sediments are proposed: prior to construction of the backwalls facing Baltic Canal incoming waters with the vast area of migration at the north end of the Vistula bar, and the post-construction backwalls with the resulting narrowing of the area and displacement of its south boundary on the north side to the level of these backwalls.


The Geologist ◽  
1863 ◽  
Vol 6 (6) ◽  
pp. 204-207
Author(s):  
R. Lechmere Guppy

In the Report on the Geology of Trinidad the Government geologists described a series of sandstones and shales extending across the island from east to west, and occupying an extent of about 97 square miles. The distribution of the formation, which has been named the “Older Parian,” is in the manner of an irregular band of from 1 to 4 miles in breadth, traversing the island in an easterly direction from the Gulf of Paria at Pointe à Pierre. This band terminates rather abruptly before reaching the east coast, but the formation reappears here and there near the south coast along a line parallel to the main band. The formation is only exposed for a short distance on the shores of the Gulf of Paria; but it has been found to cover a large area, and to be extensively developed on the continent of South America. The fossils found by the geologists in Trinidad seem to have been few, and for the most part indeterminable. They however obtained fossils from the same formation at Cumana, in Venezuela; and these remains led to the belief that the Older Parian was probably of Neocomian age. During a short visit to Pointe à Pierre I obtained several fossils, which have enabled me to make the observations detailed in the present paper.The section given by the Government geologists of the Older Parian deposits at Pointe à Pierre is taken on the south side of the point, which I have not had an opportunity of examining carefully. The geologists do not seem to be able to give much attention to that portion of the deposits which is exposed on the north side of the point, and I hope that the present paper, in so far at least as it relates to the fossils, may in some measure supply the deficiency.


2001 ◽  
Vol 23 (2) ◽  
pp. 105-118
Author(s):  
CHRISTOPHER LOWE ◽  
ANN MacSWEEN ◽  
KATHLEEN McSWEENEY
Keyword(s):  

A collared urn was found during the course of a watching-brief on the raised beach on the north side of Oban bay. Post-excavation analysis has succeeded in throwing some further light on the chronology of this type of urn and possibly on some elements of the funerary ritual associated with its burial. The same watching-brief also revealed the site of a truncated pit of medieval date, filled with fire-cracked stones.


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