Collaborative Research: Crustal Evolution of the Bering Shelf-Chukchi Sea

9317087 米勒 自板块构造学说问世以来，地球科学家们日益强调陆壳通过岩浆吸积和岩浆弧发育过程侧向生长的重要性。 北美的科迪勒拉造山带是这种地壳生长的主要例子之一，而这一造山带的阿拉斯加部分被认为几乎完全是由地壳增生过程构成的。 这项研究将在阿拉斯加大陆和俄罗斯之间的北极白令-楚科奇地区的科迪勒支造山带最北端进行一次雄心勃勃的地质和地球物理横断面调查。 研究的主要目标是使我们更深入地了解科迪勒拉式造山带下地壳的形成、演化和修改的细节，使我们更好地了解地壳深部和浅部构造和岩石学过程之间的耦合，并帮助我们确定地壳规模和板块构造规模的过程之间的一般联系。 该项目是由斯坦福大学（米勒和克伦佩雷尔）、赖斯（赖特）、加州大学圣巴巴拉（甘斯）和西华盛顿（恩格布雷森）的研究人员共同努力的结果。 参与该项目的还有来自美国地质勘探局太平洋海洋地质分部（Scholl，查尔兹）、阿拉斯加地质分部（Grantz，摩尔）和地震学分部（Brocher）的科学家，以及来自哈巴罗夫斯克（B）的三位著名俄罗斯科学家。纳塔尔'in）、雅库茨克（L. Parfenov）和马加丹（M. Gelman）。 ***

9317087 Miller Since the advent of plate tectonics, earth scientists have increasingly emphasized the importance of the lateral growth of continental crust by the processes of terrane accretion and magmatic arc development. The Cordilleran orogen of North America is one of the prime examples of such crustal growth, and the Alaskan portion of this belt is considered to have been constructed almost entirely by the process of terrane accretion. This study will undertake an ambitious geological and geophysical transect across the northernmost portion of the Cordilleran orogen in the Bering-Chukchi region of the Arctic, between mainland Alaska and Russia. The main goals of the research are to provide us with greater insight into the details of the creation, evolution and modification of the crust beneath Cordilleran-style oroginic belts, to give us a better understanding of the coupling between tectonic and petrologic processes at deep and shallow crustal levels, and to help us determine the general links between processes at the scale of the crust and those at the plate tectonic scale. The project is a collaborative effort by researchers at Stanford (Miller and Klemperer), Rice (Wright), UC Santa Barbara (Gans), and Western Washington (Engebretson). The project also involves scientists from the USGS Branches of Pacific Marine Geology (Scholl, Childs), of Alaskan Geology (Grantz, Moore), and of Seismology (Brocher), and three well-known Russian scientists from Khabarovsk (B. Natal'in), Yakutsk (L. Parfenov) and Magadan (M. Gelman). ***