查询词典 chondrite

The results suggest that natural TL of the three samples with known depth positions had depth distribution such as meteoritic cosmogenic nuclides, which was smaller with increasing distance from the current surface, indicating the conditions of cosmic ray exposure of the Jilin chondrite.

对3个已知取样深度和3个未知取样部位的吉林陨石样品的热释光研究表明，其自然热释光值具有宇宙成因核素含量相似的性质即深度分布效应，随着样品距离表面位置的增大而降低，这表征了母体暴露期间宇宙射线的分布状况。

An ordinary chondrite(Sample No.GRV052483) was recovered on blue ice during the 22nd Chinese Antarctic Research Exploration in Grove Mountains,Antarctica.

南极陨石GRV052483样品为中国第22次南极科学考察队在蓝冰上发现的一块普通球粒陨石。

Based on the detailed contrast between the chondrite normalized REE pattern s and REE geochemical evolution law, this paper proves that the ore bearing fluid for the Carlin type gold deposits in the area mainly originates from the upper mantle differentiation, and that the crust matter partly contaminates the plutonic ore bearing fluid during moving from mantle to crust.

通过稀土元素配分模式的详细对比和地球化学演化规律的研究，论证了滇黔桂地区金矿的成矿物质主要来源于上地幔分异，但深部成矿流体在运移至地壳的成矿过程中不可避免地混染了部分地壳物质，从而在一定程度上掩盖了成矿物质的实质来

Based on the detailed contrast between the chondrite normalized REE patterns and REE geochemical evolution law, this paper proves that the ore bearing fluid for the Carlin type gold deposits in the area mainly originates from the upper mantle differentiation , and that the crust matter partly contaminates the plutonic ore bearing fluid during moving from mantle to crust.

通过稀土元素配分模式的详细对比和地球化学演化规律的研究，论证了滇黔桂地区金矿的成矿物质主要来源于上地幔分异，但深部成矿流体在运移至地壳的成矿过程中不可避免地混染了部分地壳物质，从而在一定程度上掩盖了成矿物质的实质来

The border of Ehuling group and Daguding group was renewed.it concluded that volcano rocks of former subcycle and latter subcycle volcanic activities all came from the same source of magma,according to their chemical compositions and their chondrite normalized REE patterns.

对如意亭剖面鹅湖岭组与打鼓顶组的界线进行了重新厘定，对早晚两个火山活动旋回火山岩的化学成分、稀土配分特征进行了比较，得出了两旋回火山岩系属同一岩浆源的不同阶段演化产物的认识。

The chondrite normalized distribution patterns of REEs are characterized by light REE enrichment and Eu depletion with terrestrial sedime...

约 1 740年以前，陆相特征明显，气候干燥、寒冷，但是，1 5 5 0年左右有一暖期。1 740年后，出现海侵，巴罗气候变暖，1 82 1年后，变暖较明显，1 890年左右为低谷。1 90 4年持续变暖，1 971年左右，有一变冷阶段

Chondrite standardized modes of REE show that LREE is richer than HREE in both laterite-type and Carlin-type gold deposit. Carl...

红色粘土型金矿形成于上新世，卡林型金矿形成于白垩纪，在成矿时代上有先后顺序关系。

However, the Nb/Ta ratios lower than chondrite value (～17) in eclogites are inconsistent with previously proposed Nb/Ta high in subducted oceanic crust to complement the mass balance of Nb and Ta in the evolution of continental crust.

柴北缘沙柳河、鱼卡河、锡铁山和胜利口的榴辉岩类样品的地球化学分析显示它们的原岩的主体是与洋壳有关的火山岩，其中包括岛弧拉斑玄武岩、洋岛火。。。

Well-documented Lu-Hf isotope data from the oceanic basalts show that,the starting area of magma melting for the MORBs derived from the DMM component would be in the the depth of garnet peridotite,i.e.at the depth of 80―90 km instead of less than 60 km,which is at the depth of spinel peridotite as proposed early.The HIMU component,which is characterized by its high rediogenic lead,is refered as a special mantle component differentiated at some time in geological history from the lower mantle.A correlation study of Hf-Nd isotope between the chondrite and oceanic basalts implies that no isolated primitive mantle might have remained.

大量的大洋玄武岩Lu-Hf同位素研究表明：具亏损地幔端元来源的洋中脊玄武岩岩浆部分熔融的初熔区位于石榴石稳定场深度，即深度为80-90 km的石榴石二辉橄榄岩地幔，而不是原来所认为的尖晶石二辉橄榄岩区(深度小于60 km)；以高放射成因Pb为特征的高U地幔端元应代表了下地幔物质在某一特定时期发生分异作用的结果；球粒陨石与大洋玄武岩Hf同位素对比研究表明，没有原始地幔物质能保留至今的迹象。

Meibom and his colleagues based their study on two rare meteorite specimens - HH 237, a grapefruit-size chondrite recovered from the Hammadah al Hamra region of north Africa; and QUE 94411, a walnut-size sample collected from the Queen Alexander mountain range in Antarctica.

梅波姆和他的同事将理论建立在对二颗稀有陨星标本的研究基础上。这二颗陨星一颗是

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。