碳酸盐

Origin of modern Homo sapiens ; Quaternary geochronology ; U-series dating ; speleothems ; Southern China

现代人类起源；第四纪年代学；铀系测年；新生碳酸盐岩；中国南方

Based on analyses of Loss-on-Ignition,carbonate content and sediment characteristics,the authors reconstruct the climatic and environmental evolution of the Gahai Lake area since the Late Glacial period.

通过对尕海沉积物烧失量和碳酸盐含量以及岩性变化分析，重建了尕海地区晚冰期以来的气候环境演变。

Glauconite, detrital carbonate skeletal debris, marine fossils, and collophane are commonly present.

海绿石、碳酸盐骨骸碎屑、海相化石和胶磷矿普遍出现。

Most source rocks of the large marine oil-gas fields in domestic and overseas are graptolite shale, oil shale and marl with great amounts of clay mineral, which formed in the deepwater slope environment transferred from tableland to trough.But the carbonate rock is formed in the shallow water environment under good exchanging condition with atmosphere, which causes the low abundance of organic matter and poor-type kerogen.

国内外海相大油气田的烃源岩多为黏土矿物含量较高的泥页岩、油页岩和泥灰岩，形成于由台地向海槽过渡的深水斜坡环境，而碳酸盐岩形成于与大气交换条件较好的浅水环境，是有机质丰度低和干酪根类型差的根本原因。

The carbonate rock-argillaceous rock, limestone-siliceous shale and sea-bottom clastic rock developed from east to west in Pingliang Formation of the western Ordos Basin,which shows the lithological sequence of marine sediment resulted from increasing water depth. The graptolite shale and marl with high-abundance hydrocarbon are formed in the palaeogeographic environment of deepwater slope.

鄂尔多斯盆地西缘中奥陶统平凉组自东而西发育的碳酸盐岩—泥质岩、灰岩—硅质页岩和海底碎屑岩反映了海相沉积因水深变大而形成的岩性序列，含有机质丰度高的泥质和泥灰质烃源岩形成于深水斜坡相的古地理环境中。

According to the characters of organic maceral, organic type, biomarker,it can be divided to five types of sedimentary facies: unrest restricted sea graptolite facies, alluvial restricted sea, carbonate mesa algal deposit facies, mud mesa algal deposit facies and deep water shelf algal deposit facies.

根据烃源岩有机显微组分、有机质类型、生物标志物及成烃能力等特征划分出五类沉积有机相，即动荡局限海笔石相、滞流局限海笔石相、碳酸盐台地藻积相、泥质台地藻积相和深水陆棚藻积相。

Humans orientate in 3D by using otoliths, small crystals of calcium carbonate and protein that shift on hairs in the inner ear. Forces acting on these grains as a person moves mean they can sense acceleration and gravitational pull.

人类通过利用耳石、小晶体碳酸盐和内耳毛发中的蛋白质来产生三维立体感，当一个人运动时，力量就会施加在这些微粒上，从而让人感受到加速度和重力牵引。

As a result of karstification in early Hercynian and Caledonian, karst reservoir s are the main kind of Ordovician carbonate reservoirs in Tahe oilfield.

岩溶储层是塔河油田奥陶系碳酸盐岩的主要储层，是海西早期与加里东期岩溶作用的结果。

The high-concentration CaCl2 solution has wonderful characteristic in low temperature and its price is low.

高浓度的氯化钙溶液具有较好的低温特性，且成本低廉，在准封闭体系中的碳酸盐沉积很少，具有在冷却循环系统中应用的基本条件。

This paper provides a comprehensive review and critical analysis on the different reaction pathways for catalytic conversion of glycerol into commodity chemicals, including selective oxidation, selective hydrogenolysis, selective dehydration, pyrolysis and gasification, steam reforming, thermal reduction into syngas, selective transesterification, selective etherification, oligomerization and polymerization, and conversion of glycerol into glycerol carbonate.

本文提供了一个全面的审查和批判性分析的不同的反应途径甘油催化转化成商品的化学品，包括选择性氧化，选择性氢解，选择性脱水，热解气化，重整，热还原成合成气，选择交换，选择性醚化，齐聚和聚合，并转换成甘油甘油碳酸盐。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。