...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group >Reaction of a polar gravel-spit system to atmospheric warming and glacier retreat as reflected by morphology and internal sediment geometries (South Shetland Islands, Antarctica)
【24h】

Reaction of a polar gravel-spit system to atmospheric warming and glacier retreat as reflected by morphology and internal sediment geometries (South Shetland Islands, Antarctica)

机译：由形态和内部沉积物几何形态反映的极地砾石吐制系统对大气变暖和冰川撤退的反应（南方辖区，南极洲）

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

Sedimentary architecture and morphogenetic evolution of a polar bay-mouth gravel-spit system are revealed based on topographic mapping, sedimentological data, radiocarbon dating and ground-penetrating radar investigations. Data document variable rates of spit progradation in reaction to atmospheric warming synchronous to the termination of the last glacial re-advance (LGR, 0.45-0.25ka BP), the southern hemisphere equivalent of the Little Ice Age cooling period. Results show an interruption of spit progradation that coincides with the proposed onset of accelerated isostatic rebound in reaction to glacier retreat. Spit growth resumed in the late 19th century after the rate of isostatic rebound decreased, and continues until today. The direction of modern spit progradation, however, is rotated northwards compared with the growth axis of the early post-LGR spit. This is interpreted to reflect the shift and strengthening in the regional wind field during the last century. A new concept for the interplay of polar gravel-spit progradation and glacio-isostatic adjustment is presented, allowing for the prediction of future coastal evolution in comparable polar settings. (c) 2018 The Authors. Earth Surface Processes and Landforms published by John Wiley & Sons Ltd.
机译：基于地形映射，沉积学数据，无线电碳约会和地面雷达研究，揭示了极地舱口砾石吐痰系统的沉积建筑和形态发生演化。数据文档变量对大气升温反应的吐制率同步到最后冰川重新推进（LGR，0.45-0.25KA BP），南半球等同于小冰时期冷却期。结果表明，吐痰促成的中断，与冰川撤退的反应中提出的加速等静压反弹的提出发作一致。 19世纪后期在等静压反弹率下降后，吐痰增长恢复，直到今天持续。然而，现代吐流量的方向与LET早期的早期吐痰的生长轴相比旋转向北。这被解释为反映了上世纪地区风野的转变和加强。提出了极性砾石吐流程和Glacio-等静电调整的相互作用的新概念，允许在可比极性设置中预测未来的沿海演变。 （c）2018作者。 John Wiley＆Sons Ltd.出版的地球表面流程和地貌

著录项

相似文献

  • 外文文献
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