冰筏
冰筏(英語:)是指冰川的前緣隨融水流出的浮冰,其上攜帶有大量冰磧物。當冰筏傾覆或融化時,其中的漂礫即墜落於當地,稱為墜石;冰蓋解體產生的冰山融化時,這些冰磧物則沉入洋底,成為浮冰碎屑沉積。冰筏是全新世冰川期沉積物運輸的主要機制,當時海平面非常低,大部分土地被冰川覆蓋。冰筏是確定古冰川遺蹟、研究古氣候演化的的重要證據,時至今日冰筏仍在產生,但規模要比冰期小得多。[1][2][3]
参考文献
- Bischof, Jens. (PDF). Quest. Vol. 5 no. 1 (Old Dominion University). January 2002: 8–11. (原始内容 (PDF)存档于5 July 2016).
- Bischof, Jens. . . Springer-Praxis Books. Springer-Verlag. 2000: 9–10 [2021-10-13]. ISBN 978-1852336486. (原始内容存档于2021-11-28).
- Andrews, John T. (2000)Icebergs and iceberg rafted detritus (IRD) in the North Atlantic: facts and assumptions Oceanography,VoL 13,No.3
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.