Mesozoic Igneous Rocks

Antarctic, and Indian Oceans except for the Gulf of Aqaba, HCl soluble lead 

P Pelagic sediments from the Pacific Ocean basin, HCl soluble lead 

ST-GC Calcareous clastic sediments from the Salton Trough and a 

Sediments from Lake Superior in the Canadian Shield  

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McDougaU I, WeUman P (1976) Potassium-argon ages for some AustraUan Mesozoic igneous rocks. J Geol Soc AustraUa 23 1-9... 

Cenozoic and Mesozoic Igneous Rocks Table 17 (continued)... 

Mesozoic igneous rocks of western North America California, Oregon, Washington, British Columbia, Alaska, and Nevada Utah o New Mexico, Colorado, Wyoming, Idaho Montana, South Dakota, and Texas. Enclosed areas superimposed for comparison include all the isotope data on abyssal basalts and volcanics of the Hawaiian Islands. References to data are given in Table 17... 

The geological history of this area seems started by sedimentary units of Mesozoic - Cenozoic age which contains Fylisch and Limestone. These units were influenced by intrusion of volcanic and sub volcanic rocks in Miocene - Oligocene age. These igneous rocks mainly contain dacite, trachyandesite and andesite. These young volcanic units exposed in KIAMACCI Mountain vastly and their... 

The paleomagnetism of the Tasmanian Dolerite was determined by Schmidt and McDougall (1977) while Valencio et al. (1979), Valencio (1979), and Vilas and Valencio (1979) compared the paleomagnetic properties of Mesozoic and Cenozoic igneous rocks in Antarctica, South Africa, and South America. A memorial to Dr. Daniel A. Valencio was published by Anonymous (1991). 

The measurements of VGPs of igneous rocks of Mesozoic age in Antarctica and on the other conti-... 

Valencio DA, Mendia JE, Vilas JF (1979) Paleomagnetism and K-Ar age of Mesozoic and Cenozoic igneous rocks from Antarctica. Earth Planet Sci Lett 45 61-68 VUas JE, Valencio DA (1979) Palaeomagnetism of South American rocks and the Gondwana continent. In Laskar B, Raja Rao CS (eds) Fourth international Gondwana symposium, vol. 2. pp 923-930... 

Igneous rocks older than Mesozoic are somewhat difficult to work on as the corrections for in situ radioactive decay of U and Th are large and the values of U/Pb and Th/Pb often have undergone a recent... 

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