锆石

Zircon was believed to provide the wearer with wisdom, honor and riches.

锆石被认为提供的智慧，佩戴荣誉和财富。

Blue Zircon reheated in the presence of oxygen will change to a golden yellow.

蓝锆石，在加热的存在氧气会变成金黄色。

Some other older zircons with 206Pb/238U ages of 932 to 2443Ma were brought from Precambrian basement rocks at depth by strong submarine volcanic eruption and then deposited in quartz albitite together with hydrothermal fluids.

其他较老年龄锆石是由强烈的海底火山喷发作用从深部基底物质中带出的，并与热水流体一起沉积下来，赋存在石英钠长石岩中。

This paper reports the results of highly precise zircon SHRIMP U-Pb dating of quartz albitite in the volcanic-sedimentary series of the Tuolugou cobalt deposit, Golmud, Qinghai. Analyses of eight spots presented 206Pb/238U ages of 455 to 483Ma with a weighted mean age of 468±9Ma, which represents the timing of submarine volcanic exhalation in this area. Therefore, the age of the host rocks of the Tuolugou ore district is redefined as Ordovician, which implies that regionally the main part of the Naij Tal Group should be Early Paleozoic in age.

青海格尔木驼路沟矿区赋矿火山－沉积岩系中的石英钠长石岩样品锆石SHRIMP U-Pb精细测年结果表明，该岩石具有一组8个测点构成的455~483Ma的206Pb/238U年龄数据，加权平均年龄为468Ma±9Ma，应代表本区海底火山喷流作用的时间，因此重新厘定了矿区内含矿岩系的时代为奥陶纪，同时，这一年龄指示区域上纳赤台群主体的时代应为早古生代。

The study of their precise UPb geochronology and characteristics of rock associations shows that (1) small amount of EarlyTriassic (~248 Ma) volcanic rocks were preserved and cropped out in the area, which consist mainly of thin bed of andesitic rocks intercalated with minor basaltic andesites; that (2) the MiddleTriassic magmatism was characterized by extensive felsic igneous rocks with minor basalts interbedded in the middle of volcanic sections in part of areas, and the late MiddleTriassic rhyolites and main body of Lincang granitic batholith have the same extrusive/intrusive time with the age of ~230 Ma; that (3) the LateTriassic volcanic sequences are principally composed of basalts with minor interlayered rhyolites, exhibiting typical characteristics of bimodal volcanics.

三叠纪岩浆作用广泛发育于澜沧江南带，锆石UPb年代学结果及岩石组合特征显示：(1)该区残留有少量的早三叠世火山岩(约248 Ma)，主要为一套薄层的以安山岩为主的火山岩；(2)中三叠世以大规模的酸性岩浆作用为主，部分地段的中部夹有少量的玄武岩，其中晚期的流纹岩与该区出露巨大的临沧花岗岩基主体具有一致的形成时代(约230 Ma)；(3)晚三叠世则以基性火山岩为主，夹少量流纹岩为特征的&双峰式&火山岩组合。

By the research on the high coalrank coalbed methane reservoir of the Qinshui basin including the study of the coalbed thermal evolution level, the temperature and pressure of inclusion in calcite or quartz reef in coalbearing strata, the palaeogeothermal analysis of the fission track of apatite and zircon, the anogenic isotopic age, and the geothermal flux caused by magmatic activity, we have proved the existence of the tectonic thermal event.

通过对沁水盆地高煤阶煤层气藏的实例进行剖析，从煤层的热演化程度，煤系地层的方解石脉、石英脉体中的包裹体温度和压力，磷灰石、锆石的裂变径迹古地温分析，中生代火成岩的同位素年龄，岩浆活动产生的大地热流值方面证明了构造热事件的存在。

According to the research of the genetic texture of zircons and SHRIMP dating in the Caledonian banded - augen granitin Yunkai area and the Indosinian charnokite in southeast Guangxi,It is discoved that the ages of later Mesoproterzoic Sibao orogeny event concentrates between 1100 and 950Ma. It provides the important evidenve for the convergent and collision of Rodinan supercontinent in South China and the south extending of Jiangshan-shaoxin collision belt in later Mesoproterzoic.

云开地区加里东期条带-眼球状花岗岩，以及桂东南印支期紫苏花岗岩中锆石的成因结构和离子探针定年研究发现，中元古末四堡造山作用事件年龄集中分布于950-1100Ma，为华南中元古末罗迪尼亚超大陆聚合碰撞造山和江绍带的南延提供了重要证据。

This dissertation was focused on the research about the formation and evolution of NQB from the Late Triassic to the early middle Epoch of Jurassic Period, including integrated analyzing the characteristic of the key stratigraphic surfaces, the time of the key stratigraphy, regional rock straigraphy, biostratigraphy and chronostratigraphy, sedimentary system and depositional facies. On basis of these analysis, a tectonic evolution model have been established for NQB during from the Late Triassic to the early middle Epoch of Jurassic Period.1. After the systematic surface analysis about main stratigraphy units, we found that:(1) the bottom of Xiaochaka formation was comformity with the middle Triassic in the basin, and in the north margin it was deposited and overlapped on the different period stratigraphy before Triassic.(2) The top surface of Xiaochaka formation developed regionally karst and paleo-karst breccia, and was uncomformity with Nadigangri Formation, these things suggest that NQB in Xiaochaka depositing stage was developed from middle Triassic basin, and then an extensive regression occurred, the deposition was over and erosion come into being.(3) The lithologic assemblage, geochemistry, mixed fossils, and stratigraphy overlapping characteristic of Quemocuo Formation in early middle Jurassic indicted that the uncomformity surface was an extension-unconformity.2. Integrated analysis about stratigraphy division and correlation indicted that:(1) the paleontologic assemblage of Xiaochaka formation show its time was Carian -Norian stage of late Triassic. According to it was overlapped by late Triassic Nadigangri Formation, so Xiaochaka formation should be Carian - early Norian stage.(2) the SHRIMP Zircon U-Pb age of Nadigangri formation volcanic rocks wear vary form 216 to 205 Ma, so its time should be Norian, but maybe extended into Rhaetian Stage.(3) The age of its bottom volcanic rocks, the fossil assemblages of its middle and upper members and overlapped by lower Jurassic, indicted the age of Riganpeicuo Formation was Norian - Rhaetian stage. And the same time, the volcanic rocks geochemistry of Nadigangri and Riganpeicuo formation both reflected that they wear formed in rift tectonic settings. The lower lithologic and surface characteristic, fossil assemblages and its upper maybe was conformity with lower Jurassic, all reflected that the age of Tumengela Formation in Tumen area should be Norian - Rhaetian stage.

论文对晚三叠世—中侏罗世早期盆地的形成与演化开展了研究，包括关键地层界面特征分析、关键地层时代归属分析、区域岩石地层、生物地层和年代地层的综合对比分析、区域沉积体系与沉积相分析、岩相古地理分析，最终建立晚三叠世—中侏罗世早期羌塘盆沉积—构造动力演化模式。1、系统的对各地层单元的界面分析发现：(1)肖茶卡组底界在盆地内部与中三叠统整合关系，在盆地北缘为沉积超覆于不同时代的前三叠系之上：(2)肖茶卡组顶界面发育古岩溶角砾岩，与上覆那底岗日组为岩溶不整合接触，说明肖茶卡组沉积时期的羌塘盆地是在早中三叠世的盆地基础发展起来的，后期出现了广泛的海退事件，使盆地结束沉积并遭受风化剥蚀作用；(3)中侏罗统雀莫错组的岩性组合特征、岩石化学特征、古生物化石混积和地层的沉积超覆现象均表现出裂陷环境下形成的伸展不整合面的特征。2、综合地层划分与对比分析认为：(1)肖茶卡组古生物化石组合反映其时代为晚三叠世卡尼期—若利期，根据其上被上三叠统那底岗日组不整合覆盖，将其时代厘定为卡尼期—若利期早期；(2)那底岗日组火山岩SHRIMP锆石U-Pb年龄在216～205 Ma之间，其时代主要为若利期，可能包含有瑞替期：(3)日干配错组底部火山岩的年龄、中上部化石组合及其被下侏罗统整合覆盖，综合反映的时代为晚三叠世若利期—瑞替期，而且那底岗日组火山岩和日干配错组火山岩的地球化学成分分析反映两者均为引张构造背景下的产物；土门地区的土门各拉组的下部岩性及界面特征、化石组合和上部可能被下侏罗统整合覆盖，综合反映其时代为若利期—若利期。

Basing on detailed field survey and laboratory researches on lithological features, mineralogical composition, geochemical and zircon SHRIMP U-Pb data, together with the mineralogical study of chromitite and mantle peridotite heavy mineral bulk sample, various proceedings and recognitions have been achieved:(1) The mantle peridotite is the remnants of partial melted MOR mantle altered by SSZ fluids.

通过详细的野外调查和室内岩石薄片的岩相学、矿物成分、岩石地球化学和锆石SHRIMP U-Pb同位素年代学，铬铁矿和地幔橄榄岩的人工重砂大样的矿物学研究，取得以下进展和认识：(1)认为康金拉地幔橄榄岩为部分熔融MOR地幔残余，叠加了SSZ流体的改造。

Therefore, above-mentioned age dating together with previous chronologic data led us to conclude that the Sulu HP-UHP nappes have two basements: the Early-Middle Protrozoic (≥2400 Ma) basement in the N. Sulu and the Neoprotrozoic (700-800 Ma) basement in the S. Sulu. The basement ages in the N. Sulu together with its western part of the no-UHP metamorphic area (Laiyang-Penglai) are similar and named by the Jiao-Liao-Korea block belong to the NCP. Besides, the boundary between both of the S. Sulu UHP area and JLKB is along north Wulian and south Haiyangsuo.

北苏鲁超高压变质地区的花岗质片麻岩锆石SHRIMP U-Pb定年表明，变质基底的年龄是2400Ma（或＞2400Ma），并经历了1800～1700Ma和～200Ma的变质事件，研究表明苏鲁高压－超高压变质地体由2个不同时代变质基底组成，北苏鲁的变质基底属于北中国板块胶辽朝地块的一部分，形成时代比南苏鲁基底老得多，其与南苏鲁地块之间的界限位于五莲以北到海阳所以南一线。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。