1) Cheniers and wetland
贝壳堤岛与湿地
2) Seashell Islands
贝壳堤岛
1.
Preliminary Study on Vascular Plant Flora in Seashell Islands Nature Reserve of the Yellow River Delta
黄河三角洲贝壳堤岛自然保护区维管植物区系研究
2.
The Characteristics of Microelements Content and Forms of Seashell Islands in Yellow River Delta
黄河三角洲贝壳堤岛贝壳沙中微量元素含量及形态特征
3) recent and present geo environmental changes
贝壳堤与牡蛎礁
4) shell bar
贝壳堤
1.
Based on the analysis of TOC,CaCO3,δ13Corg,δ18O,δ13C of shell bar sediments in the Qaidam basin and the comparison with grain size,the environmental change of the studied section are divided into five stages.
通过对柴达木盆地察尔汗古湖贝壳堤剖面沉积物中总有机碳、有机质碳同位素及碳酸盐含量、碳氧同位素的分析,并结合粒度数据,将研究剖面所记录的古湖泊环境演化过程划分为5个阶段。
5) Shell Bar section
贝壳堤
1.
Based on the grain size analysis, carbonate, magnetic susceptibility measurements on the shell bar section at Qarhan Lake in Qaidam Basin, the translation and sedimentation processes of the materials have been discussed and the lake level change history is reconstructed.
通过对柴达木察尔汗盐湖贝壳堤剖面沉积物粒度、碳酸盐和磁化率的对比,结合沉积物粒度频率曲线与多种粒度参数分析,详细讨论了研究剖面形成过程中物质搬运和沉积作用以及所反映的环境变化。
6) Chenier
['ʃinəri:]
贝壳堤
1.
The New Views on the Relations between the Development of Cheniers and the Neotectonic Movement on the West Coast of Bohai Bay;
关于渤海湾西岸贝壳堤发育与新构造活动关系的新认识
2.
The development scale, time span and geo-environmental information of the chenier plays a crucial role in the researches of Quaternary geology.
贝壳堤是渤海湾西岸、西北岸近五六千年以来成陆过程中的一类重要地质现象。
3.
A set of average calibration ages,obtained from the lower part of cheniers indicate that Chenier Ⅰ along the west shoreline of Bohai Bay began to form in about 700～900 cal BP(1050-1250AD),and continued to develop until 18～19 centuries.
取自堤下部的 1 4 C平均校正年龄表明 ,渤海湾西岸沿现代海岸线展布的第一道贝壳堤 ( 堤 )的初始年龄约在 90 0～ 70 0 cal BP/AD10 5 0～ 12 5 0 ,堤的发育延续至 18、19世纪。
补充资料：贝壳堤
| 贝壳堤 shell levee 粉砂淤泥质海岸带，在波浪的作用下，将淘洗后的生物介壳冲向岸边形成的堆积体。波浪的冲刷，使海滩坡度增大，底质粗化，底部的贝壳类介壳被海水冲到岸边，堆积在高潮线附近，经长期作用便形成贝壳堤。当海岸带泥沙来源充分，海滩泥沙堆积作用旺盛时，贝壳堤停止发育。多次的冲淤变化便留下多条贝壳堤。可以作为古海岸线迁移的标志。用14C同位素年代测定贝壳生成的年代，便可恢复海岸发育的历史。如渤海湾西岸由于黄河多次南北改道，形成了数条标志古岸线的贝壳堤。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条