摘要
辽南滨海黄土具有沙黄土特征,主要由末次冰期低海面裸露的渤海海底物质经西北风短距离搬运堆积而成;黄土剖面中22～3φ粒级含量高～低～高变化(粗～细～粗粒度韵律层),表明沉积时干冷～湿凉～干冷的古气候特征及渤海海退～海侵～净退的历史。
The loess along south Liaoning seashore derived from Bohai seabed during the last glacial period when sea level was low was transported and deposited by northwest wind in a short distance. The variations of 2-3 φ content (corase-fine-corase cycle) in the profile indicate the dry and cold-cool and wet-dry and cold palaeoclimate changes and the regres-sion-trans-gression-regression process of Bohai.
出处
《海洋科学》
CAS
CSCD
北大核心
1991年第2期33-37,共5页
Marine Sciences
关键词
滨海
黄土
粒度
古气候
Seashore loess, Grain-size, Palaeoclimate
