• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geology, Geophysics & Environment >Sedimentary response to tectonic uplift of the Dukla basin margin recorded at Skrzydlna – the Menilite Beds (Oligocene), Outer Carpathians, S Poland
【24h】

Sedimentary response to tectonic uplift of the Dukla basin margin recorded at Skrzydlna – the Menilite Beds (Oligocene), Outer Carpathians, S Poland

机译：在Skrzydlna记录的Dukla盆地边缘构造隆起的沉积反应 - 细胞石床（寡核苷），外喀尔巴阡山脉，波兰

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Menilite Beds (Oligocene of Polish Flysch Carpathians) at Skrzydlna crops out in a structurally complex zone of the Fore-Magura Unit, which is tectonically overridden by Magura Nappe thrust form the S. The exposed sedimentary suite, representing the Dukla Basin, consists of fine-grained, well organised strata deposited in a low-energy, deep marine basin, which are abruptly overlain by poorly organised, coarse sandy conglomerate that forms a Mass Transport Deposit (MTD) complex. The MTD contains large boulders of extrabasinal rocks, massive sandstone beds with intrabasinal mudstone clasts, and slump sheets of sandstones. Above rests a fining- upwards sequence of sandstone beds interlayered with mudstones. The fine-grained facies reappear above to terminate the exposed succession. Erosional contacts and rapid facies changes, both vertical and lateral, are characteristic for the MTD unit. The sandstone-mudstone unit above contains laterally migrating erosional channels filled with massive sandy conglomerate in the lower part. Turbidites of varying density and completeness of internal structures that occur above are accompanied by an association of mixed facies including large-scale dune cross-bedding. Mineralogically, the sandstones are quartz arenites, sub-lithic arenites and wackes. Calcarenite grains – bio- clasts, micrite and marl occur in substantial proportions only in the uppermost part of the succession. The point-counting data plotted on Qm-F-Lt diagram are clustered within the recycled fields: quartzose and transitional. Mineralogical maturity of the sandstones has the tendency to decrease from the sub-MTD strata upwards via the MTD unit to the lower part of the sandstone-mudstone complex; then it increases to the youngest sandstone beds with carbonate grains. These tendencies, associated with sedimentary features of the succession, reflect rapid uplift, emergence and progressive erosion of the terrigenous detritus source area, followed by tectonic stabi
机译：在前马鲁拉单元的结构复杂区域的Skrzydlna庄稼中的美甲酸盐床（波兰氟氏岩石喀尔巴阡山脉），这是由Magura Nappe推力的构成覆盖的，该沉积套件代表Dukla盆地，包括精细颗粒，井中沉积在低能量，深海盆地中，突然覆盖，粗糙的含沙砾岩，形成大量运输沉积物（MTD）复合物。 MTD含有大型巨石岩石岩石，砂岩床，具有内联泥岩泥土，以及砂岩坍塌的砂岩。以上与泥岩夹层的砂岩床上的澄清序列。细粒面相对于上面终止暴露的继任。侵蚀触点和快速相变，垂直和横向都是MTD单元的特征。上面的砂岩 - 泥岩单元含有横向迁移的侵蚀通道，填充有较大的砂质砾岩。上述内部结构的不同密度和完整性的浊度伴随着混合面的关联，包括大型沙丘交叉床上用品。矿物质上，砂岩是石英恒星，岩石芳香和狼。 Calcarenite谷物 - 生物纤维，Micrite和Marl仅在连续的最高部分中以实质的比例发生。绘制在QM-F-LT图中的点计数数据在回收的字段中聚集在回收的字段中：石英糖和过渡。砂岩的矿物学成熟度通过MTD单元向砂岩 - 泥岩复合物的下部向上从亚MTD地层降低;然后它增加到最小的砂岩床，碳酸盐晶粒。与继承的沉积特征有关的这些趋势，反映了人造碎屑源区的快速隆起，出现和渐进侵蚀，其次是构造稳定

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号