Late Pleistocene stratigraphy of south-central British Columbia
Late Pleistocene stratigraphy of south-central British Columbia
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不列颠哥伦比亚省中南部晚更新世地层
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
G. W. Smith
中科院分区：
文献类型：
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作者：
R. Fulton;G. W. Smith
不列颠哥伦比亚省中南部晚更新世沉积记录了两个主要的冰川期和两个主要的非冰川期沉积。已知的最古老的更新世沉积物，称为韦斯特沃尔德沉积物，是在6万多年前的非冰期沉积的。关于这一时期气候的信息很少，但永久冻土可能在西部世界沉积物沉积的最后阶段曾经出现过。这一非冰川期的后期可能与五大湖的早期威斯康辛亚阶段-圣劳伦斯河谷地区有关。然而，西世界沉积物的沉积可能是在上加门间冰期开始的。奥肯那根中心漂移是指在西世界沉积物沉积之后的冰河时期沉积的沉积物。已知奥肯那根中心漂移的历史超过4800年，可能超过51000年。它被认为与威斯康星州早期的冰川期有关。贝塞特沉积物很深……
The late Pleistocene deposits of south-central British Columbia record two major glacial and two major nonglacial periods of deposition. The oldest recognized Pleistocene deposits, called Westwold Sediments, were deposited during a nonglacial interval more than 60 000 years ago. Little information is available on the climate of this period, but permafrost may have been present at one time during final stages of deposition of Westwold Sediments. The latter part of this nonglacial period is probably correlative with the early Wisconsin Substage of the Great Lakes – St. Lawrence Valley area. However, deposition of the Westwold Sediments may have begun during the Sangamon Interglacial.Okanagan Centre Drift is the name applied to sediments deposited during the glaciation that followed deposition of Westwold Sediments. Okanagan Centre Drift is known to be older than 43 800 years BP and probably is older than 51 000. It is considered to correlate with an early Wisconsin glacial period.Bessette Sediments were dep...