Sedimentary and Climatic evolution of the Arctic (Canada and Svalbard) during the Late Paleozoic (SCALP 8)

晚古生代期间北极（加拿大和斯瓦尔巴群岛）的沉积和气候演化（SCALP 8）

• 批准号: 239647704
• 负责人: Privatdozent Dr. Christian Scheibner
• 金额: --
• 依托单位: Fachbereich 05: Geowissenschaften
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/239647704?language=en
• 关键词: Sedimentary; Climatic; evolution; Arctic; Canada

The scientific focus of this field-based project is on Late Paleozoic sedimentary bedrocks, exposed at the Broggerhalvoya in western Spitsbergen. These strata record a change from terrestrial depositional environments to a shallow-marine, warm-water carbonate platform. The development reflects a major sea-level rise and transgression during a period of global icehouse conditions marked by high-frequency and high-amplitude sea-level fluctuations. Each of these rhythmically alternating sedimentary cycles shows a typical shallowing upward, highlighted by facies and organism changes. Together with biostratigraphic tie-points, marked by larger foraminifera (fusulinids) we will establish a cyclostratigraphic chart of western Spitsbergen. In combination with the results of previous international research projects focused on contemporaneous strata in central and eastern Spitsbergen, this project will improve the local, regional and general understanding of the environmental and depositional development of Svalbards Late Paleozoic sedimentary basins.

该野外项目的科学重点是斯匹次卑尔根岛西部Broggerhalvoya的晚古生代沉积基岩。这些地层记录了从陆相沉积环境到浅海暖水碳酸盐岩台地的变化。这一发展反映出，在以高频率和高幅度海平面波动为特征的全球冰库条件时期，海平面大幅上升和海侵。每一个有节奏交替的沉积旋回都表现出典型的浅水上升，突出表现为相和生物的变化。结合以大型有孔虫（fusulinids）为标志的生物地层联络点，建立了斯匹次卑尔根西部的旋回地层图。结合以往针对斯匹次卑尔根中部和东部同生地层的国际研究项目的成果，该项目将提高对斯瓦尔巴群岛晚古生代沉积盆地环境和沉积发育的当地、区域和总体认识。