| 1. | Intrusive rocks of yanshan period and gold mineralizationin middle - south of shandong 鲁中南地区燕山期侵入岩与金成矿 |
| 2. | Magmatic activities and its constraints on gold - silver mineralization in xiong ' ershan area , western henan province 豫西熊耳山地区燕山期岩浆作用对金银成矿的制约因素 |
| 3. | Influence of the tectonic thermal events in yanshan epoch on coalbed methane enrichment and high - productivity in xishan coal field in taiyuan 燕山期构造热事件对太原西山煤层气高产富集影响 |
| 4. | Discussion on the lithospheric thinning of the north china craton : delamination ? or thermal erosion and chemical metasomatism 关于华北克拉通燕山期岩石圈减薄的机制与过程的讨论:是拆沉,还是热侵蚀和化学交代 |
| 5. | The first is the depression karst development pattern from dissolution of karst hill during indo - chinese epoch which is the key period for forming space of the reservoir 其中印支早燕山期裸露岩溶属溶丘(梁)洼地型岩溶发育模式,是储集空间形成的重要时期。 |
| 6. | In china , the yanshanian is the most important period of metallizing process of gold , followed by the variscan , luliang - jinningian , wutainian and the himalayan periods 而我国金矿床的成矿时代则以燕山期为最重要,吕梁晋宁期和海西期次之,其馀为五台期和喜马拉雅期。 |
| 7. | The gold deposits , related to volcanic - subvolcanic - porphyry metallogenic series of yanshan epoch in northern jiangxi province , belong to one of the most important gold metallogenic series 摘要燕山期火山次火山浅成斑岩金矿成矿系列构成了赣北地区一个重要的金矿成矿系列。 |
| 8. | The area has experienced complicated and various structural movements since the indosinian stage , of which the most important thing is the massive yanshanian structural - magmatic event 自印支运动以来,板内构造演化复杂而多样。最引人注目的无疑是燕山期广泛而强烈的构造-岩浆热事件。 |
| 9. | Magmatic intrusion took place mainly during the yenshan and himalayan epochs and is dominated by intermediate to acidic rocks ; basic to ultra - basic intrusive rocks are only locally observed 在时间上,岩浆侵入活动主要发生在燕山期和喜马拉雅期,以中酸性岩占绝对优势,基性岩仅零星见及。 |
| 10. | The primary factor of soil erosion is the erosion of yanshan period granite , the secondary factor is heavy rainfall , and the inducing factor is human activity 水土流失产生的主导因素是燕山期花岗岩分布的丘陵区岩体结构遭到破坏;从属因素是持续强烈的降雨,从而加剧了水土流失;激发因素是人类工程活动对地质环境的破坏。 |