学了地质干了没有几年,但对岩石还是情有独钟的。偶尔发现了一些石头,觉得很有趣,拍下来上课用,还可以做个留念。不过有些不认识,请行家里手教俺一教哦。 1. 看看这两块,是袈裟还是岩石,叫啥名? 2. 这叫什么岩石?还是化石? 3. 从哪来的?不知道,但知道在哪里看到的,请看: 4. 在地质之角的北端,发现了七石之阵,什么意思、什么含义俺统统不知道,更参不透。但看到了两块石上刻着字,又教育了俺一把。 A hundred times every day I remind myself that my inner and outer live are based on the labors of other men, living and dead and that I must exert myself in order to give in that same measure as I have received and am still receiving.
因为某个原因,和一篇地质文章有缘。我没有学过地质,对地质没有什么了解,但是我很有兴趣,依靠搜索引擎,找了些资料,我尽力把文章翻译了一下。当然,我知道错误会很多。但是没有关系,我会继续了解地质的知识,以后会逐渐改正这些错误。 今天就算开个头,把译完的文章放在这里。 Geothermobarometry of UHP and HP eclogites and sch 翻译稿
典型蒸发岩与泥岩共生沉积体系中元素及烃类物质响应 以 东营凹陷 沙四段为例 陈中红 , 等。地质学报, 2009 , 83 ( 3 ): 435-445 内容提要:东营凹陷沙四段中、下亚段是中国东部典型的新生代第三系蒸发岩与烃源岩共生沉积体系。对 其中两口深层井(郝科 1 井、丰深 2 井)沙四段含盐层段进行了较密集的取心,对其中无机元素组成特征、碳同位素及有机质丰度、成熟度、生烃指标等进行了测试及分析,分析结果显示: 不同元素响应差异明显,铝及锰、钡含量为低值响应,钠、钙、镁含量为高值响应,锶含量显示异常高值;特征元素比值分布上也有明显响应, V/Ni 、( Fe+Al ) /(Ca+Mg) 出现低值响应, Sr/Ba 、 Fe/Mn 、 Sr/Ca 均出现高值响应; 元素分布离散性和波动性比较明显,无机元素在蒸发岩中亏损,而在相邻泥岩中相对富集(钠除外,钠在蒸发岩中富集); 不同族组分和正构烷烃单体烃 碳同位素值分别分布于 -28~-21 和 -32~-18 , 有机质 族组分间碳同位素分馏效应相对小 (-2) ,正构烷烃单体烃碳同位素曲线上, C 17 、 C 18 的 13 C 值相对较高而 变化显著;热演化和 TSR 反应造成对烃源岩中残留烃类碳同位素 13 C 值 的增重作用;所检测 含盐 井段具有良好的生、排烃能力,有机质组分中腐泥组占绝对优势,有机质类型为 Ⅰ型和Ⅱ 1 型,烃源岩原始生烃潜量及排烃量可分别达到 40 mg/g 和 20 mg/g ,排烃效率基本在 60% 以上,但它在平面上和剖面上均具有较强的非均质性 。 与蒸发岩共生的的泥岩有机质丰度、成熟度及生、排烃各项指标要高于蒸发岩,高热演化可导致其残余生排烃能力下降。 关键词:无机元素;碳同位素;生、排烃潜力;蒸发岩;东营凹陷 Response of M ineral Elements, C arbon Isotope and Hydrocarbon in Typical Co-Sedimentary System of Evaporates and Mud in Lacustrine Basin: A Case Study from the Dongying Sag, Bohai Bay Basin CHEN Zhonghong, et al. ACTA GEOLOGICA SINICA, 2009 , 83 ( 3 ): 435-445 China University of Petroleum, Dongying, Shandong, 257061 The middle and lower parts of 4 th Member of Shahejie Formation in Dongying sag were the representative co-sedimentary system of evaporates and mud rocks in the Eastern of China. To investigate the response of mineral elements , carbon isotope and hydrocarbon generation of co-sedimentary system of evaporates and mud rocks t he saline formation of two deep wells (Haoke-1 well and Fengshen-2 well) in the sag were intensively cored, tested and dissected. The results demonstrate that: there were remarkable response of formation water field and the content of total salinity and chloride ion was very high, and the type water of CaCl 2 was dominated, which displayed the favorable conditions of sealing and conservation; different minerals have various response, t he content of Al, Mn, Ba and the parameter of V/Ni, (Fe+Al)/(Ca+Mg) have low value responses, and t he content of Na, Ca, Mg and the parameter of Sr/Ba, Fe/Mn, Sr/Ca were highly responded, especially the content of Sr displayed remarkable high value. The distribution of mineral elements had obvious characteristics of discretion and fluctuation, and the mineral elements are discrepancy in the saline deposits and enriched in the adjacent mud (except for Na, and Na enriched in the saline deposits); the value 13 C of different group compositions and composition of n-alkane was respectively ranged from -28~-21 and -18 ~-32 , the fractionation of 13 C between group compositions was no more than -2,and there was marked fluctuation in C 17 、 C 18 . The value of 13 C of carbon isotope of residual hydrocarbon from source rocks was increased by thermal evolution and TSR reaction. The co-sedimentary system of evaporates and mud had potential capacity of hydrocarbon generation and expulsion. The tested samples were type Ⅰ and type Ⅱ 1 of organic matter, and their original potential capacity of hydrocarbon generation and expulsion can reached 40 mg/g and 20 mg/g, and the efficiency of hydrocarbon expulsion attained 60%, but t he distribution of organic matter and its potency of hydrocarbon generation and expulsion had stronger heterogeneity. The content and maturity of organic matter and its potency of hydrocarbon generation and expulsion from the mud were higher than the evaporatess in the co-sedimentary systems. Key words: mineral element; carbon isotope; evaporates; potency of hydrocarbon generation and expulsion; Dongying sag