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Pangean megamonsoon : ウィキペディア英語版 | Pangean megamonsoon The Pangean megamonsoon refers to the theory that the supercontinent Pangea experienced a distinct seasonal reversal of winds, resulting in extreme transitions between dry and wet periods throughout the year. Pangea was a conglomeration of all the global continental land masses, which lasted from the late Carboniferous through the mid Jurassic.〔Smith, A.G. and R.A. Livermore: Pangea in Permian to Jurassic time. Tectonophysics, 187, 135-179.〕 This megamonsoon intensified as the continents continued to shift toward each other, reaching its maximum strength in the Triassic, the period in which continental surface area of Pangea was at its peak.〔Dubiel, R.F., J.T. Parrish, J.M. Parrish, S.C. Good, 1991: The Pangaean Megamonsoon—Evidence from the Upper Triassic Chinle Formation, Colorado Plateau. Society for Sedimentary Geology, 6, 347-370.〕〔Parrish, J. T., 1993: Climate of the Supercontinent Pangea. Journal of Geology, 10, 215-233.〕 The megamonsoon would have led to immensely arid regions along the equator and the interior regions of the continent. These areas would have been nearly uninhabitable, with extremely hot days and frigid nights. However, the mid-latitude coasts experienced seasonality, transitioning from rainy weather in the summer to dry conditions during the winter.〔Parrish, J. T., 1993: Climate of the Supercontinent Pangea. Journal of Geology, 10, 215-233.〕 ==Monsoon Circulation== Monsoon circulations, defined as a seasonal reversal of winds, exhibit large shifts in precipitation patterns across the impacted region. Monsoons are therefore characterized by two primary seasons: rainy and dry. They are induced by the presence of at least one large land mass and large body of water in close proximity to each other. The most commonly studied present-day monsoon circulation is the East Asian Monsoon.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pangean megamonsoon」の詳細全文を読む
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