砾屑岩

The rock types include rhyolite,dacite and sedimentary volcaniclastic rocks,among which the lava tuff breccia was newly discovered in the 1∶ 50 000 region.

岩石类型为流纹岩、英安岩和沉火山碎屑岩，其中的熔结角砾凝灰岩是本次 1∶ 5万区调中的新发现。

A schematic model was proposed to illustrate the occurrences of various lithologies and lithofacies associations. The erosional surfaces on siliciclastic mudstones, funnel-shaped structure, and the exhuming of massive cold-seep carbonates exposed might have been occurred concurrently during a tectonic unstable time in SW Taiwan. The deposition of fossiliferous mudstone interfingered with the conglomerate lithofacies, and represented the rapid facies transition from siliciclastic (non-carbonate) into carbonate environment.

综合岩相观察结果，建构一个符合台湾西南部更新世珊瑚礁与基底泥岩接触关系的沉积相模式；其中，基底泥岩顶部的不规则冲蚀面、充填碳酸盐胶结泥岩砾与碳酸岩烟柱的漏斗状沉积，以及块状冷泉碳酸盐岩的出露，可能均为区域地质构造活动时期所造成；至於与含化石泥岩同时沉积的砾岩相，可能均为基底泥岩在快速浅化的过程中所沉积，标志古环境由矽质碎屑快速转变为碳酸盐环境的过程。

A triangular diagram with the contents of gravel, sand, and mud as the three end members for textural classification of terrigenous sedimentary rocks is put forward and is applied to the classification of the rocks of Nantuo Formation in Siduping, which is classified as "diamictite," breccia, graywacke, silty mudstone erc.

文中提出以砾、砂、泥作三端员成分进行陆源沉积岩结构分类的三角图解方案，并用于四都坪南沱组岩石的划分，将其划分为杂屑岩、角砾岩、杂砂岩、粉砂质泥岩等。

Studies show that it is a set of turbidity sedimentary under the condition of deep-water environment in rift deep depressing period with the characteristics of multiphase and mutability, The lithology of reservoir is chiefly mid-fine grained conglomerate and lithic mixed sandstone, as well as the gravel-bearing sandstone next. Sand bodies in the plane are controlled by water channel obviously, resulting in NW-oriented banded distribution.

研究表明，大凌河油层是裂谷深陷期深水环境条件下形成的一套浊流沉积物，沉积物具有多期性和突变性，主要岩性以中－细砾岩和岩屑质混合砂岩为主，次为含砾砂岩，砂体在平面上受水道控制明显，呈北西向的条带状展布。

Sedimentary facies model for mixed sediments of recent reefoid carbonates and siliciclastics is developed from the facies model of fringing and barrier reefs. Based on the sedimentary facies and textures, mixed sediments may be subdivided into 5 types as follows: 1 reef base mixed sedimentary rocks and reef framework mixed sedimentary rocks; 2 reef flat sand-gravel mixed sedimentary rocks; 3 backreef beach-dune gravel-sand mixed sediments; 4 backreef lagoonal sand mixed sediments ; and 5 reef front littoral sand mixed sediments.

礁源与陆源混合沉积相模式是从岸礁一堡礁相模式基础上发展而来，根据其沉积相和沉积结构特徵可以分为5种混合沉积：①礁基混积岩和礁格架混积岩；②礁坪砂砾屑混积岩；③礁后海滩－沙提砾砂屑混合沉积；④礁后泻湖砂屑混合沉积；⑤礁前浅海砂屑混合沉积。

The main sedimentary facies types include shoal facies of platform margin, organic reef facies of platform margin, platform evaporate facies, open-platform facies, restricted platform facies and carbonate platform ramp facies, and the front three types of facies are the uppermost facies belt. The main sedimentary microfacies types include subordinate organisms dolomite microfacies, sparry grain(biogenic debris, sand cutting, alga chippings and so on) dolomite microfacies, detention gravel debris dolomite microfacies, boundstone microfacies, non-lamina dolomite mudstone microfacies, lamina dolomite mudstone microfacies, lamina lime mudstone microfacies, sparry grainstone microfacies and testaceous chippings limestone microfacies, and the front three types of microfacies are the uppermost microfacies type.

该区长兴组主要的沉积相类型有台地边缘浅滩相、台地边缘生物礁相、开阔台地相、局限台地相、台地蒸发岩相和碳酸盐台地缓坡相六个相带，主要的微相类型有生物粘结云岩微相、亮晶颗粒云岩微相、滞留角砾云岩微相、纹层纯云泥岩微相、非纹层纯云泥岩微相、生物粘结灰岩微相、纹层纯灰泥岩微相、亮晶颗粒灰岩微相和介屑灰岩微相九种微相类型。

In the areas distributed by Silurian siltstone and sandstone, Ordovician dolomite and dolomitic limestone, as well as Middle-Upper Cambrain limestone and calcirudite, the selenium content of the water in springs and wells is low.

含硒量低的志留纪砂岩和粉砂岩、奥陶纪白云岩、白云质灰岩以及中、晚寒武世灰岩和砾屑灰岩分布区的泉水和井水的含硒量低。

The main characteristics of the skarn are as follows:(1)occurring as bedded,para-bedded in the contact zone between carbonate and microclastic rock,and its occurrence being accordance to the strata;(2)cut by later vein rock,so having no relation with the magmatic rock on genesis;(3)metasomatic skarn having replacement remnant texture,pseudobreccia structure,while depositional skarn,particulate crystall...

研究表明该夕卡岩的主要特征为：(1)呈层状、似层状赋存于碳酸盐岩和细碎屑岩接触带，产状与地层一致；(2 )被后期脉岩穿切，成因上与岩浆岩无关；(3)喷流交代夕卡岩具交代残余结构和假角砾状构造，而喷流沉积夕卡岩具微粒状结构、雏晶结构和层纹、条纹、条带状构造，反映了二者不同的喷流成因；(4)发育典型的低温夕卡岩矿物组合，其形成温度小于30 0℃；(5 )夕卡岩的稀土配分型式与围岩的一致。

Paleogene braided river delta and meandering river delta are well developed in Gudong area They are composed mainly of coarse clastic rocks such as conglomerate, pebbled sandstone and sandstone, and are the major types of sedimentary facies in the study area.

孤东地区古近纪辫状河三角洲及曲流河三角洲非常发育，主要由砾岩、含砾砂岩及砂岩等粗碎屑岩组成，是本区重要的沉积相类型。

Analysis on mineral characteristics (percent of shingly fragment, maturation index and heavy mineral coefficient of stability) and depositional environment in Mesozoic remanet strata show that provenance located in the north of Yanqi basin, clast were moved from north to south in Mesozoic, and the sedimentary environment in northern basin were braided stream facies while shallow lacustrine stream facies in southern basin.

通过对焉耆盆地现今残留中生代地层中的岩矿特征(碎屑含砾百分比、成熟度指数和重矿物稳定系数)及沉积环境分析，焉耆盆地中生代物源区位于盆地北部，碎屑由北至南搬运；盆地北部为辫状河相沉积环境，南部为浅湖相沉积环境。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。