中国克山病的构造环境机理研究——以陕西病区为例

【作者】 李成；

【导师】 王战；

【作者基本信息】 西北大学 ， 构造地质学， 2001， 博士

【摘要】 摘 要对前人在克山病方面研究成果的分析表明，克山病的病因尚无定论，前人对克山病的归属和动力机制及影响因子等存在许多疑团。在此基础上，以陕西病区为研究对象，提出应从以下三方面加以研究：1、克山病病区的构造环境分析。在对中国大陆内部NE方向最醒目的一条构造带——燕辽—太行—龙门山构造带的地质构造特征及古地理环境变迁分析的基础上，通过对克山病病区的构造特征和断裂带与地质发病的关系，以及克山病病区古地理因素的分析，反映出：克山病病区分布与燕辽—太行—龙门山构造带在方向上（NE）存在高度的一致性，说明两者之间具有某种内在联系。2、通过对克山病病区的地球化学特征分析，发现：克山病病区的分布与我国由东北到西南的一条低硒带完全吻合，进而结合陕西克山病病区——黄土高原病区的调查和分析，证实低硒是克山病发病的重要环境因子。为了找到克山病发病的基本病因，作者首次提出：开展地球化学元素同位素的研究，有可能是打破僵局、将实验进行下去的有益尝试。3、通过对克山病病区的地球物理异常特征的分析，结合陕西克山病病区分布的构造单元和深部地球物理状况，以及同克山病高发年份同地球物理异常（强地震）年份的联系，提出克山病病区地球物理异常是潜在的发病因子。鉴于克山病病因的复杂性，作者认为，需要多学科（地学、医学、生物学等）的交叉渗透，并应用最新的地球物理和地球化学手段，进<WP=3>行跨区域的合作研究，才能最终找到克山病的病因，从而根治分布区域广大的这一地方病隐患。更多还原

【Abstract】 Abstract Through the analysis of research achievements on Keshan disease, this article shows that we has still not got last words about the pathogeny of Keshan disease, and there are many doubts and suspicions in the ascription, driving mechanism and influencing factors of Keshan disease, which were conducted by former experts. On the basis of that, we take Shannxi as an example, and think we should study from the following three aspects: 1. The tectonic environmental analysis of Keshan disease areas. On the basis of analyzing tectonic features and ancient geographical environment flux of the most striking tectonic belt------Yanliao---Taihang---Longmen Mountain towards northeast in inner Chinese mainland, we have analyzed ancient geographical factors and the relationships of tectonic feature and fault structure belts as well as geological morbidities in Keshan disease areas. The research shows that there is high coherence between the distribution of Keshan disease areas and the tectonic belt of Yanliao---Taihang---Longmen Mountain towards northeast, and also shows that there are some inner connections between the areas and the belt. 2. Through the analysis of Chemical geography features of Keshan disease areas, we found that the distribution of Keshan disease areas is just located in the belt filling with low selenium from the northeast to the <WP=5>southwest in China. Then combining the survey and research of Keshan disease areas in Shaanxi---loess plateau disease areas, we conform that low selenium is the important environmental factor of the morbidity of Keshan disease. In order to find out the basic pathogeny of Keshan disease, the author firstly think that it may be a beneficial experiment of breaking the deadlock and continuing the experiment to take the research on isotopes of chemical geography elements. 3. Though the analysis of abnormal Physical geography features in Keshan disease areas, we combine construction units and deep-earth physical states of Keshan disease areas distribution in Shannxi as well as the connections between the years when the Keshan disease incident is high and the year when the Physical geography is abnormal (the earthquake is more severe), and confirm the abnormity of Physical geography is the potential pathogenic factor. Because of the complexity of Keshan disease pathogeny, the author thinks the ways to find the Keshan disease pathogen and get ride of the hidden danger of this widespread regional disease are the crossover and infiltration of multi-subjects (Geo-science, Medicine, Biology etc.), the use of latest Physical geography and Chemical geography approaches, and the cross-area cooperative research.更多还原