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Fansipan (Vietnamese: Phan Xi Păng, listen ⓘ) is a mountain in Vietnam. Its height was 3,143 metres (10,312 ft) in 1909, and it presently stands at 3,147.3 metres (10,326 ft). [ 1 ] It is the highest mountain on the Indochinese peninsula (comprising Vietnam, Laos , and Cambodia ), hence its nickname, "the Roof of Indochina".
The developing fractures probably followed weak zones already initiated during the Paleozoic. The main direction of these fractures is WNW-ESE, the so-called Pyrenean direction, an excellent example being the North Pyrenean Fault. These fractures will play a decisive role during the further development of the orogen.
The geology of Vietnam is divided into five structural blocks : Northeast (NE), Northwest (NW), Truongson, Kon Tum and Nambo. The NE block is a part of the South China plate, in which strata and igneous rocks have been found dating from the Early Paleozoic to the Quaternary. The NW and Truongson blocks are regarded as NW-SE trending Paleozoic ...
The spreading reached and formed the Alborian Basin between 23 and 20 Ma. Africa converged towards Eurasia, and the direction changed from north north west to north west in the Tortonian. This change in compression formed the Baetic Cordillera on the Mediterranean coast in the Middle Miocene. Basins were inverted and raised up in the Iberian ...
The geology of the Northern Mariana Islands began to form with undersea volcanic eruptions in the Eocene. Islands such as Saipan show a variety of rock types including volcanic rocks, breccia, tuff, conglomerate, sandstone, clay and extensive limestones.
Figure 1. A geologic cross section of the Grand Canyon. [4] The Unkar Group is a sequence of strata of Proterozoic age that are subdivided into five geologic formations and exposed within the Grand Canyon, Arizona, Southwestern United States. The Unkar Group is the basal formation of the Grand Canyon Supergroup.
The islands of Japan were separated from mainland Asia by back-arc spreading.. The islands of Japan are primarily the result of several large ocean movements occurring over hundreds of millions of years from the mid-Silurian to the Pleistocene, as a result of the subduction of the Philippine Sea Plate beneath the continental Amurian Plate and Okinawa Plate to the south, and subduction of the ...
Nappes were formed in two phases: the outer (Northern) or lower group of nappes called the Silezia-Krosno Belt, and the overriding internal (Southern) Magura Belt. Nappes are thrust over their foreland in the form of tectonic slices. At least part of the Flysch Belt was an Eastern continuation of the Alpine Penninic Zone, probably the Valais ...