Sedimentary and Climatic evolution of the Arctic (Canada and Svalbard) during the Late Paleozoic (SCALP 5)

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 5）

• 批准号: 90990628
• 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: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/90990628?language=en
• 关键词: Sedimentary; Climatic; evolution; Arctic; Canada

During the last years the geology of the Arctic has been in the focus of numerous studies. This is mainly due to the presence, finding and prediction of rich oil- and gas reservoirs in this area. But despite of the general interest in the geology of the area, most of the geological studies are regional studies dealing with specific topics. This project aims, together with further projects (see chapter 5.2, linked projects), to combine this individual knowledge from isolated depositional areas (Sverdrup Basin, Canada, and Svalbard) to create a supra-regional overview. The first project step here applied for, will concentrate on the regional evolution and correlation of Late Carboniferous carbonate successions in the tectonically relatively quite Sverdrup Basin. In a later step we will integrate Late Carboniferous sections from Svalbard to establish a supra-regional correlation of Arctic Upper Carboniferous cyclic carbonate deposits. The Late Carboniferous is the zenith of the Permo/Carboniferous glaciation on Gondwana and the waning and waxing of these glaciers resulted in eustatic sea-level oscillations. In the absence of strong regional tectonics these are well preserved and traceable in carbonate successions. 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) and conodonts, we will establish first a correlation of the cyclic successions in Canada and later on supra-regional up to Svalbard.

在过去的几年里，北极的地质一直是众多研究的焦点。这主要是由于该区存在、发现和预测了丰富的油气储层。但是，尽管对该地区的地质普遍感兴趣，但大多数地质研究都是针对特定主题的区域研究。本项目旨在与其他项目（见第5.2章，相关项目）一起，将这些来自孤立沉积地区（加拿大Sverdrup盆地和斯瓦尔巴群岛）的个人知识结合起来，创建一个超区域概述。本项目申请的第一步，将集中研究构造相对完整的Sverdrup盆地晚石炭世碳酸盐岩序列的区域演化与对比。在接下来的步骤中，我们将整合来自斯瓦尔巴群岛的晚石炭世剖面，建立北极上石炭世旋回碳酸盐岩矿床的超区域对比。晚石炭纪是冈瓦纳二叠纪/石炭纪冰川的顶峰，这些冰川的消退和消退导致了海平面的上升振荡。在没有强烈的区域构造作用的情况下，它们在碳酸盐层序中保存得很好，可追溯。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。结合以较大有孔虫（fusulinids）和牙形刺为标志的生物地层连接点，我们将首先建立加拿大旋回序列的对比，然后建立到斯瓦尔巴群岛的超区域对比。