当前位置: X-MOL 学术Mar. Petrol. Geol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Structural setting and geodynamics of the Kvarner area (Northern Adriatic)
Marine and Petroleum Geology ( IF 4.2 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.marpetgeo.2020.104857
Marko Špelić , Anna Del Ben , Krešimir Petrinjak

ABSTRACT The Kvarner area is located in the Northern Adriatic Sea, between the south-east Istrian Swell, the Rijeka coast and the Croatian sea boundary. It includes several islands, representing the outcropping parts of anticlines produced by the compressional/transpressional deformation of the External Dinaric Chain. An extensive 2D seismic dataset, acquired for hydrocarbon exploration and calibrated by wells, allowed us to reconstruct the time structural maps in Kvarner and unravel its regional fault pattern. The Dinaric compressional phase affected the area in the Late Cretaceous, with both thin-and thick-skinned tectonics related to Adriatic Carbonate Platform (AdCP) succession rigidity. The uplift of the Istrian Swell is partly caused by the Late Cretaceous compressional effect of the Dinaric chain. Structural highs facing the Kvarner offshore from the Istrian inland continue through the Kvarner and Rijeka bays and outcrop in the islands. These anticlines, originating from the pre-Messinian Dinaric thrust system, were reactivated by the post-Messinian transpression, as testified by flower structures. Several sharp valleys represent two main low structural lineaments, developed between the anticlines and partially incised during the Messinian. They were observed throughout the entire studied area, specifically in the western part of the bays, where the lineament continues through the valleys and penetrates the SW-Istria land. Data show that the Messinian erosional effect and sedimentation patterns were influenced and driven by the morphology of older structures produced by the Dinaric compressional phase.

中文翻译:

Kvarner 地区(亚得里亚海北部)的构造环境和地球动力学

摘要 Kvarner 地区位于亚得里亚海北部,在东南伊斯特拉湾、里耶卡海岸和克罗地亚海边界之间。它包括几个岛,代表由外部狄那拉链的挤压/挤压变形产生的背斜的露头部分。为油气勘探获取并通过井校准的广泛二维地震数据集使我们能够重建 Kvarner 的时间结构图并解开其区域断层模式。Dinaric 挤压相在晚白垩世影响该地区,具有与亚得里亚海碳酸盐台地 (AdCP) 演替刚性相关的薄皮和厚皮构造。伊斯特拉隆起的隆升部分是由晚白垩世 Dinaric 链的挤压作用引起的。从伊斯特拉内陆面向 Kvarner 近海的结构高点继续穿过 Kvarner 和 Rijeka 海湾,并在岛屿上露头。这些背斜起源于前墨西拿第纳尔冲断系统,在后墨西拿逆压作用下被重新激活,如花结构所证明的那样。几个尖锐的山谷代表了两条主要的低构造线,它们在背斜之间形成并在墨西拿时期部分切开。在整个研究区域都观察到了它们,特别是在海湾的西部,在那里,线条继续穿过山谷,并穿透了 SW-Istria 土地。数据显示,墨西拿的侵蚀作用和沉积模式受到第纳尔压缩相产生的旧结构形态的影响和驱动。
更新日期:2021-03-01
down
wechat
bug