U.S.-Chile: Morphotectonic Evolution of the U.S.-Chile: Mejillones Peninsula, Northern Chile Using Precise GPS Measurement of Uplifted Coastal Terraces

0514266 PinterThis美国-智利/美国-德国奖将支持Nicholas Pinter博士和康斯坦萨A女士。卡本代尔的南伊利诺伊大学的卡萨诺瓦博士与加布里埃尔A。他与智利安托法加斯塔北天主教大学的Gonzalez博士以及德国科隆大学的Ulrich Radtke博士合作，进行题为“利用精确的GPS测量隆起的海岸阶地研究智利北方Mejillones半岛的地貌构造演化”的论文改进项目。“直到最近几年，这个半岛基本上是无法进入的。 它包含了一系列上升的海岸阶地，这些阶地是世界上最好的。 至少有13个不同的阶地，由于极端干旱，在保存的阶地形态，阶地覆盖沉积矿床和这些矿床中保存的丰富化石材料方面是无与伦比的。 本研究的目的是绘制、精确测量和分析这一序列。 这些结果将增加世界各地的台地海平面信息数据库，调查当地的气候演变，并记录沉积物匮乏的智利俯冲复合体的上新世-更新世构造演变。 Radtke博士将在电子自旋共振（ESR）测年技术方面培训Casanova女士。 电子自旋共振是在每一个确定的阶地收集的化石软体动物壳上进行的。这个项目的结果将发布在一个供美国和智利地质学学生使用的双语网站上。

0514266PinterThis U.S.-Chile/U.S.-Germany award will support Dr. Nicholas Pinter and Ms. Constanza A. Casanova of Southern Illinois University at Carbondale to work with Dr. Gabriel A. Gonzalez of Universidad Catolica del Norte in Antofagasta, Chile, as well as with Dr. Ulrich Radtke at the University of Cologne in Germany, on a dissertation enhancement project entitled "Morphotectonic Evolution of the Mejillones Peninsula, Northern Chile Using Precise GPS Measurement of Uplifted Coastal Terraces." This peninsula was largely inaccessible until the last few years. It contains a sequence of uplifted coastal terraces that rank among the best in the world. At least 13 distinct terrace levels are present, and because of the extreme aridity, is unmatched in preserved terrace morphology, terrace-capping sedimentary deposits and the abundant fossil material preserved in those deposits. The goal of this research is to map, precisely measure and analyze this sequence. The results would add to the worldwide databse of terrace-based sea-level information, investigating local climate evolution, and documenting the Plio-Pleistocene tectonic evolution of the sediment-starved Chilean subduction complex. Dr. Radtke will train Ms. Casanova in the Electron Spin Resonance (ESR) dating technique. ESR is done on fossil mollusk shells that will be collected on each identified terrace level.Results of this project will be posted on a bilingual website for geology students in the U.S. and Chile.