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A wide variety of primary pyroclastic, volcaniclastic and re-sedimented volcaniclastic deposits derived from multiple kimberlite eruptions are exceptionally well preserved at the Orion South kimberlite body in the Fort à la Corne field in central Saskatchewan. Construction of this kimberlite complex involved episodic kimberlite volcanic events punctuated by periods of volcanic quiescence, erosion...
U-Pb zircon/monazite dating and Sr-isotope results for granitoids from Taiwan and Chinmen-Lieyu, SE China place important constraints for the tectonic evolution and the timing of felsic magmatism associated with mid-Cretaceous subduction process. The Chinmen gneiss (139.4 Ma) and granite (100.9 Ma) represent the oldest granitic units and belong to the previously recognized late Yanshanian phase of...
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