U.S.-Bulgaria Research on Neogene Extension and its Relations to the Regional Tectonic Setting of the Eastern Mediterranean Region

B博士与保加利亚的这项研究项目。克拉克·伯奇菲尔 和克里斯托·尼科洛夫博士 保加利亚科学院地质研究所的德塞尔斯基 科学提出了一个跨学科的计划，旨在 记录和理解晚新生代伸展变形， 保加利亚从区域构造和过程为导向 perspective. 保加利亚是广阔的东地中海的一部分 伸展构造活动区 保加利亚地质学家 在晚新生代的构造方面做了出色的工作， 这允许快速综合现有数据， 重点放在保加利亚境内的关键领域， 将增强数据，以便研究当地和 区域伸展过程可以产生很好的约束 结果 本研究分为两个部分：（1）研究 保加利亚年轻的伸展变形， 面向过程的观点，以及流体动力学的应用 概念来理解下地壳流动的作用。 这些 在低地壳流动模型中， 由拉伸变形驱动将施加到重力， 保加利亚的地形和地貌数据。 这两部分的研究都具有广泛的适用性， 了解表面变形与 地壳和地幔的更深层次的过程：第一部分关系到 俯冲作用与区域构造的关系及其驱动力 第一种是岩石圈上部的变形，第二种是岩石圈上部的变形。 理解这些过程的重要一步， 大陆变形的后果。 地质科学的这个项目实现了 促进科学知识的目标， 美国和东欧的专家将联合收割机 人才优势互补，资源优势互补 共同利益和能力。

This US-Bulgaria research project between Dr. B. Clark Burchfiel of Massachusetts Institute of Technology and Dr. Christo Nikolov Dabovski of the Geological Institute, Bulgarian Academy of Sciences proposes an interdisciplinary program designed to document and understand late Cenozoic extensional deformation in Bulgaria from a regional tectonic and process oriented perspective. Bulgaria is part of the broad eastern Mediterranean region of active extensional tectonism. Bulgarian geologists have done excellent work on the late Cenozoic tectonics of the region and this permits a rapid synthesis of existing data and focusing on the key areas within Bulgaria where additional work will enhance the data so that the study of both local and regional extensional processes can yield well constrained results. The research consists of two parts: (1) a study of young extensional deformation in Bulgaria from a regional and process-oriented perspective, and application of fluid dynamic concepts to understanding the role fo lower crustal flow. These two basic goals overlap in that models of lower crustal flow driven by extensional deformation will be applied to gravity, topography and geomorphological data from Bulgaria. Both parts of the research are of broad applicability in understanding the relationship between surface deformation and deeper processes in the crust and mantle: the first part bears on the relationship of subduction and its driving forces to regional deformation in the upper lithosphere, while the second is an essential step toward understanding the processes and consequences of continental deformation. This project in geological sciences fulfills the program objective of advancing scientific knowledge by enabling leading experts in the United States and Eastern Europe to combine complementary talents and pool resources in areas of strong mutual interest and competence.