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- County in intrusive rock is acidic magmatic rocks. 县境内的侵入岩主要是酸性岩浆岩。
- A variety of geological environments are extrusive or intrusive rocks. 不同的地质环境形成喷出岩或侵入岩。
- Nephrite deposits in Qinghai Province have occurred in contact belt between intermediate-acidic intrusive rocks and dolomite-marble. 摘要青海软玉矿床产于中酸性侵入岩与大理岩接触带中。
- The Mesozoic and Cenozoic plutonic intrusive rocks are grouped into the Lhagoi Kangri and Gangdise granite zones. 将中新生代深成侵入岩划分为拉轨岗日花岗岩带和冈底斯花岗岩带两个岩浆带;
- Calcite deposits mainly occur in the carbonatite area and the meta morphosed contact zone around the intrusive rocks. 方解石矿床一般产于碳酸盐岩地区和侵入岩变质接触带,受断裂风化淋滤容矿,热液接触变质作用,由碳酸盐岩褪色重结晶而形成。
- The orebodies occur within or near the exocontact of intrusive rocks and above the hidden igneous rocks. 金矿产于岩体外接触带及其附近和隐伏岩体上方。
- Acidic granite intrusive rocks are not developed suggesting the tectonic magmatic belt was not well developed. 酸性花岗岩类侵入岩极不发育,构造岩浆带不发育。
- These rocks are called intrusive rocks and are cooled very slowly because they were insulated by the rocks surrounded them. 这样形成的火成岩叫做侵入岩。因为侵入岩被其周围的岩石所隔离,它的冷却是非常缓慢的,
- The ore bodies are strictly controlled by SN and NNW trend fault and the wall rocks and the intrusive rocks are involved in the mineralization. 金矿体严格受SN和NNW向断裂控制,围岩和侵入岩参与了成矿作用。
- Liguo early Cretaceous high-Mg adakitic intrusive rocks in the Xuzhou region: petrogenesis and implications for geodynamics and mineralization. 东天山黄山-镜儿泉地区二叠纪地质-成矿-热事件:幔源岩浆内侵及其地壳效应
- Mesozoic intermediate-acid intrusive rocks are closely related with large scale mineralization in the Tongling metallogenic cluster area. 中南大学地学与环境工程学院;
- It indicates that porphyry copper deposits should be exploited in the intermediate-acid intrusive rocks within the district. 矿区外围中酸性侵入岩体具有形成斑岩铜矿的地质条件。
- Ultrabasic rocks have a silica content less than 45%. Peridotite is the typical intrusive rock which consists of olivine and pyroxene. 超基性岩的SiO2含量小于45%25,它的侵入岩叫做橄榄岩,主要由橄榄石、辉石等矿物组成。
- K Ar dilution and 40 Ar/ 39 Ar step heating methods have been chosen in dating the isotopic ages of the volcanic and intrusive rocks of Byers Peninsula, Livingston Island. 以K-Ar稀释法和40Ar/39Ar阶段加热法对利文斯顿岛百尔斯半岛的熔岩和次火山岩测定了同位素年龄。
- The chondrite normalized REE distribution patterns show no Eu anomalies in the late Archaean intrusive rocks but show negative Eu anomalies in the early Proterozoic ones. 鲁西晚太古代的侵入岩属无铕异常型,早元古代的侵入岩为负铕异常型;
- Geochronology of Cretaceous A-type granitoids or alkaline intrusive rocks in the hinterland, South China: constraints for late-Mesozoic tectonic evolution. 华南腹地白垩纪A型花岗岩类或碱性侵入岩年代学及其对华南晚中生代构造演化的制约
- The Precambrian intrusive rocks in western Shandong area mainly fall into two parts:the Taishanian(Archean)and the Aolaishanian(early Proterozoic) intrusive rocks. 鲁西地区的前寒武纪侵入岩分为太古代泰山期和早元古代傲徕山期二部分。
- In this region, the tectonic faults with NS direction develop, neutral-acid intrusive rocks and alkaline basalt eruptive rocks form two nearly NS direction magmatic rock belts. 区内近南北向隐伏断裂发育,中酸性侵入岩、碱性玄武喷发岩构成近南北向岩浆构造带;
- The Machangqin Cu-Mo-Au deposit is a type deposit related to the Himalayan epoch rich-alkali intrusive rock. 云南马厂箐(铜、钼)金矿床是滇西北地区与喜马拉雅期富碱侵入岩类有关矿床的典型代表之一。
- Through analysing the petrochemistry,trace elements and REE of the intrusive rocks, we provide the model that the emplacement mechanism of plutonic mass is of the heat-light-balloon-expansive origin. 对岩体的岩石化学、微量元素、稀土元素进行分析,提出深成岩体就位机制为热轻气球膨胀型式的模式。