查询词典 dikes

Dioritic magmatic enclaves have been discovered in the subvolcanic ring dikes for the first time by this study. These enclaves have typical back-vein and quenched margin where there are a lot of needle-like apatites.

首次在相山北部次火山岩岩墙中发现的辉石闪长质岩浆包体，具有典型的反向脉及淬冷边，其淬冷边内含有大量的针状磷灰石。

This thesis has emphasized studies on forming mechanism of dioritic quenched enclaves in the subvolcanic dikes and cryptoexplosive breccia at depth of the Zoujiashan uranium deposit, systematically studied the diagenetic ages, geochemical characteristics and Nd, Sr, Pb and Lu-Hf isotopic compositions of the Xiangshan volcanicintrusive complex and mineralization at depth of the Xiangshan ore-field.

本文重点解剖了相山次火山岩中闪长质淬冷包体及邹家山富大铀矿床深部隐爆角砾岩的成因机制；系统研究了相山火山-侵入杂岩的成岩时代及其Nd、Sr、Pb和Lu-Hf同位素组成；同时还对相山火山-侵入杂岩的岩石地球化学特征及相山矿田深部的成矿作用进行了深入研究。

In order to promote the protection and utilization of mangrove ecosystem,this paper reviewed some ecological functions of mangrove ecosystems which can provide large quantity of organic matters,epeirogenic processes and shelterbelts,and protect dikes...

本文对红树林生态系统在生产有机物、维持热带亚热带河口生态系统、降低风速以及海水流速、防治和减轻灾难、截留碎屑形成陆地、保护海堤、吸附污染物净化水体、提供多种生境、维护生物多样性，以及形成优美的环境开展生态旅游等几个方面的生态服务功能进行了综述，旨在为红树林资源的保护与合理利用提供参考。

For intrusion, only those hypabyssal intrusion rocks with thickness over 15 m, having effective fracture zone, and inserted in or immediately adjacent to mature source rock, and those dikes near contemporaneous fault and within buried hill fracture zone have favorable reservoir forming condition s.

在大量的侵入岩体中，只有侵入岩厚度大于15m，具有有效裂缝带发育、直接嵌置或紧邻成熟烃源岩的浅成侵入岩，以及分布在同生断层附近的、潜山裂缝发育带中的脉岩具备有利成藏条件。

The following conclusions have been drawn:(1) According their field and petrologic characteristics and building upon previous works, Late Mesozoic and Cenozoic mafic dikes form Jiangxi province are complex in rock associations which are compose of lamprophyre and gabbro-diabase and diabase and diabase-porphyrite, are mainly distributed into three north-north-eastern strike belt including Xingzi-Shanggao-Pingxiang and Dexing-Yujiang-Xiangshan-Jian-Shangyou and Caotaobei-Dajishan.

本论文选择了江西省晚中生代以来的基性岩脉为研究对象，运用矿物学、元素和同位素地球化学及K-Ar测年等研究方法，首次较为系统地研究了江西省晚中生代以来的基性岩脉、与地壳拉张有关的基性侵入岩体的地质地球化学特征，并利用对其形成时代、源区性质的研究来探讨中国东南部地壳拉张期次、地幔性质等地球动力学背景中的关键性问题。

The source of mafic dikes are mixed with depleted mantle and enrichment mantle, but the contents of the former is more than that of the later.

本期的基性岩脉微量元素含量、MORB标准化模式和同位素与前面白垩纪的基性岩脉明显不同，软流圈参与其源区明显增多。

60Ma of mafic dikes are found in Jiangxi province, have probably confirmed that there are 50-60Ma important crust extension events in southeast China indeed.

通过对江西省中部古新世的基性岩脉的地质地球化学特征进行研究，发现了江西省中部的确存在50～60Ma地壳拉张事件。

According the Sr - Nd isotopic and trace element characteristics and field observation, the mafic dikes are not affected by crustal material during emplacement.

根据Sr、Nd同位素、微量元素研究及野外地质观察，本区基性岩脉的岩浆在上升侵位过程中未发生地壳物质混染。

According to K-Ar dates and geochemistry of mafic dikes and previous works, the K-Ar data can be divided into five periods (146Ma, 132—138 Ma, 105—112Ma, 82—99Ma, 54-75Ma).

可将工作区基性岩脉的形成时代分为5期，分别是：第一期146Ma，第二期132～138Ma，第三期105～112Ma，第四期82～99Ma，第五期54～75Ma。

The mafic dikes also formed by the partial melting of enriched mantle, include gabbro, diabase and lamprophyres (camptovogesite, odinite and hornblende lamprophyres).

基性脉岩主要包括辉长岩、辉绿岩和煌斑岩(以斜闪煌斑岩为主，同时含部分拉辉煌斑岩和角闪煌斑岩)，都为富集岩石圈地幔部分熔融的产物。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。