甘肃西部花海子盆地第四纪介形类Subulacypris  

QUATERNARY SUBULACYPRIS(OSTRACODA)FROM THE HUAHAIZ BASIN,WEST GANSU,CHINA

作　　者：杨藩[1] 路艳丽[1] 乔子真[1] 

机构地区：[1]青海油田公司勘探开发研究院,甘肃敦煌736202

出　　处：《微体古生物学报》2013年第4期389-404,共16页Acta Micropalaeontologica Sinica

摘　　要：本文记述了花海子盆地第四纪介形类动物群中占绝对优势的Subulacypris,共7个种,其中新种4个。依据该属种产出层特性及其在介形类动物群中的分布特征推测,适于这些种的生活环境应属严寒气候条件下的冰水河流,化石壳体微量元素分析结果提供的环境信息与这一推测相吻合。The Huahaiz Basin（Suganhu Basin）, lying in the west of Gansu Province, China, is surrounded by the A1 tun Mountains and the Qilian Mountains where the rocks are constitute of Pre-Mesozoic. It is an intermountain basin in the far west of the Qinghai-Xizang （Tibet） Plateau,with the elevation of 2 800 3 200 meters. The annual mean temperature at the west of the basin is 2. 75 ~C, the mean annual precipitation, 18. 7 mm, and the evaporation, 2 967.2 mm. The basin is under the influence of the highland frigid climate of the arid region. The surface sediments in the basin are considered to be Late Pleistocene and Holocene in age.

关 键 词：介形类 Subulacypris第四纪 冰水河 花海子盆地 甘肃 

分 类 号：Q915.2[天文地球—古生物学与地层学]