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单县毛庄地区第四纪地层划分新认识 被引量:2
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作者 沙启文 王强 王英 《山东国土资源》 2009年第11期31-33,共3页
单县毛庄地区砂金矿普查钻探资料及其所揭示的标志层(灰黑色黏土层)14C同位素测年结果为2 230±790aB.P.,树轮校正年龄为2 230±950 aB.P.,该地层属于全新世白云湖组,其与单县组呈同时异相关系。
关键词 第四纪 同位素测年 地层层序划分 白云湖 单县组 单县毛庄地区
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鲁西南平原区第四纪全新世地层划分 被引量:8
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作者 王世进 吕明英 +1 位作者 张富中 孙天柱 《山东国土资源》 2005年第9期30-34,共5页
鲁西南平原区第四纪全新世地层自下而上划分为5个组:下部为黑土湖组,中部为同期异相的巨野组、单县组、鱼台组,上部为黄河组。黑土湖组为全新世早—中期湖沼相沉积的灰—灰黑色粘土类粉砂质粘土,含大量淡水螺蚌介壳;巨野组为全新世黄河... 鲁西南平原区第四纪全新世地层自下而上划分为5个组:下部为黑土湖组,中部为同期异相的巨野组、单县组、鱼台组,上部为黄河组。黑土湖组为全新世早—中期湖沼相沉积的灰—灰黑色粘土类粉砂质粘土,含大量淡水螺蚌介壳;巨野组为全新世黄河早期沉积,由褐黄色粉砂夹棕红色粘土组成;单县组为黄河古决口扇、古河道沉积,岩性主要为细砂、粉砂;鱼台组为黄河古决口扇前缘洼地沉积,岩性为一套棕红色粘土,局部夹粉砂土。黄河组为黄河现代河床及河漫滩沉积,由灰黄色粉砂土、粘质砂土夹粘土层及砂土组成。 展开更多
关键词 巨野 单县组 鱼台 全新世地层 鲁西南平原区
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The general laws of the evolution of the county governance in our country before the founding of the new China
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作者 SHI Ziheng 《International English Education Research》 2018年第1期113-115,共3页
Since the Qin Dynasty started the county system to the foundation of China, "county" has been the basic unit of the centralized state in our country. Although the county-level governance mode is stable, its evolutio... Since the Qin Dynasty started the county system to the foundation of China, "county" has been the basic unit of the centralized state in our country. Although the county-level governance mode is stable, its evolution has laws to follow. Generally speaking, the rules are that the scale of the county government is small for a long time and the governmental functions in the long term are fixed. The roles of the clan organizations in the social governance are increasingly strengthened and the slow development and roles of other social organizations outside the clan organizations are increasing. 展开更多
关键词 County governance historical law
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