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作者引证了一些大湖区现代地壳运动速度计算的新资料,这些资料是通过分析1865年至1952年在各湖进行水位观测的结果而获得的。这里刊载了各湖水位相对变化综合表及现代地壳运动示意图(见附图)。根据顾登堡的水位测量资料,现代地壳运动(向北方斜升)的共同特点和地表歪斜(перекашивание)估计值(每100公里100年为5—9厘米),与以前公布的根据重新进行水准测量而作出的穆尔(Moore S.,Bull.Geol.Sec.America,1948,59,697—710)的结论是一致的。为了获得地壳运动的绝对值,作者和穆尔都利用了大西洋沿岸地带各验潮站(与重新进行水准测量有关的大西洋沿岸地区及大湖区的各个验潮站)的读数。但在作者和穆尔的示意图上,现代地壳运动零点等值线的位置是不一致的。照作者的意见,零点等值线向南
The authors cite new data on the calculation of the velocity of modern crustal movements in the Great Lakes region, which was obtained by analyzing the results of water level observations at various lakes from 1865 to 1952. The comprehensive table of the relative changes in the water level of the lakes and the schematic diagram of the modern crustal movement are shown here (see attached figure). Based on Gutenberg’s water level measurements, the common features of the modern crustal movement (ramping up to the north) and the estimated surface distortions (5-9 cm per 100 km for 100 years) are consistent with the previously published revisions The conclusions made by Moore S. Bull. Geol. SEC. America, 1948, 59, 697-710 are consistent. In order to obtain the absolute value of the crustal movement, both the author and Moore took advantage of the readings of each tide gauge in the Atlantic Coast (individual tide gauges in the Atlantic and Great Lakes regions associated with the re-leveling). However, on the maps of the author and Moore, the location of the zero contour of the modern crustal movement is inconsistent. According to the author’s opinion, zero contour south