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灰岩 Limestone 1008次播放 简介>>

灰岩又称石灰岩,是以方解石为主要成分的碳酸盐岩。硬度一般不大,与稀盐酸有剧烈的化学反应。灰岩是东兰国家地质公园喀斯特地貌形成的主要原因,也是农业、工业、化工及建筑行业重要的生产原料。


Limestone is a kind of carbonate rock mainly composed of calcite, Which is generally not very hard but can have a intense chemical reaction with dilute hydrochloric acid. Limstone is the major reason of forming karst landform in Donglan National Geopark, and it is also important raw materials for agriculture, industry, chemical industry and building trade.

 

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喀斯特地貌 Karst landform 1007次播放 简介>>

喀斯特地貌即岩溶地貌,是发育在以石灰岩和白云岩为主的碳酸盐岩上的地貌。我国的喀斯特地貌主要分布在广西、贵州以及云南东部,是世界上最大的喀斯特区之一。东兰地区喀斯特发育的多轮回和地带性特点,形成了各具特色、千姿百态的喀斯特地貌景观和巧夺天工的洞穴奇景。

Karst landform is a kind of landform developed in carbonate rocks, mainly composed of limestone and dolomite. Karst landform in China mainly distributed in Guangxi province, Guizhou province and east of Yunnan province, which is one of the largest karst areas in the world. The karst development of the Donglan region is characterized by multiple cycles and zonality, forming various features of karst landscape and wonderful cave scenes.


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喀斯特地貌的形成 The formation of karst landform 1012次播放 简介>>

水和可溶性岩石是形成喀斯特地貌必备的条件,当雨水或者地下水与地面碳酸盐类岩石接触时,就会有少量碳酸盐岩溶于水中。经过长时期的溶解侵蚀,最终形成东兰地区形态各异的喀斯特地貌景观。在喀斯特地貌下往往存在地下河、溶洞等景象。

Water and Soluble rocks are necessary conditions in the formation of karst landform. When rainwater or underground water meet with carbonate rocks on the ground, few carbonate rocks will dissolve in the water. After a long time of dissolution and erosion, there formed karst landscape of various shapes in Donglan region. Besides, there also exist other landscapes, such as subterranean river and karst caves.


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沉积岩层的特征 Characteristics of sedimentary strata 1004次播放 简介>>

沉积岩具有层理特征。由于季节气候的变化,沉积环境的改变使沉积物的颗粒大小、形状、颜色和成分会发生变化而显示成层的现象,常见有水平层理、平行层理、斜层理等。层面上常见波痕、泥裂、雨痕等,也常含有生物化石。层理、层面特征、含生物化石是沉积岩区别于其它岩石的主要标志。

Sedimentary rocks have bedding characteristics. Climate changes changed the sedimentary environment, which in turn changes the size, shape, color and composition of the sediments. As a result, the bedding occurred. The common beddings are horizontal bedding, parallel bedding, inclined bedding etc. On the bedding plane, there are ripple marks, mud cracks, raindrop imprints and so on. Usually, there also exists biological fossils. Beddings, bedding features, and biological fossils are the main marks that differ sedimentary rocks from other rocks.


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层理 Bedding 1064次播放 简介>>

层理是指岩层中物质的成分、颗粒大小、形状和颜色在垂直方向发生改变时产生的纹理,常见于大多数沉积岩和一些火山岩中,是研究地质构造变形及其历史的重要参考面。沉积岩中层理的形成可能是沉积物结构和成分的变化或者沉积间歇、沉积季节的变化所致。火山碎屑物在其爆发和降落过程中,由于重力、颗粒大小和风的影响,成岩时会形成具有分选性的层理。


Bedding refers to the textures caused by the changes of composition, size, shape, color in vertical direction. Those textures usually can be seen in most sedimentary rocks and some magmatic rocks, which plays an essential role in studying geological structure deformation and its development. The stratification formed in sedimentary rocks could be due to the changes in sediment structure and composition or sedimentary intermittent and seasonal alternation. During the diagenetic process, influenced by gravity, particle size and wind, bedding of sorted behaviour was formed.


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溶洞 karst cave 1002次播放 简介>>

神秘的溶洞,在灯光的辉映下,五彩斑斓、奇幻迷离。放眼望去,玲珑剔透的钟乳石如奔驰的骏马、屹立的宝塔、倒泄的瀑布,栩栩如生,千姿百态。东兰国家地质公园内溶洞众多,列宁岩、兰木地宫、新烟溶洞、板岜溶洞等都是典型代表。

With the lamplight shining, the magic karst cave looks colorful and fantastic. Looking around, the exquisite stalactites are of various shapes, among which, some looks like chasing horses, others shaped like towering pagoda and fallen waterfall. What a vivid scenery with vitality! There are lots of karst caves in Donglan National Geopark, most of the representatives are Lenin rock, Lanmu underground palace, Xinyan cave, Banyi cave. etc.  


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崩塌堆积物 Collapse accumulation 1117次播放 简介>>

陡坡或洞顶上的岩土体在重力作用下突然脱离母体崩落、滚动、堆积在坡脚沟谷或洞底形成结构松散、多孔隙的堆积体,经过沉积堆积,形成堆积地貌景观。

Under the force of gravity, the rock and soil on the steep slope or on the roof suddenly drop, move and accumulate at the bottom of the valley or cave, forming a deposit of loose structure. The accumulation landform is formed after deposition.


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钟乳石Stalactite 1143次播放 简介>>

钟乳石,又称石钟乳,是指碳酸盐岩地区洞穴内漫长的地质历史中和特定地质条件下,由碳酸钙和其他矿物质的沉积形成的诸如石钟乳、石笋、石柱等不同形态碳酸钙沉淀物。东兰国家地质公园溶洞内的石钟乳形态各异,栩栩如生。石笋如锋利宝剑,直指苍穹;石柱如擎天巨柱,气概豪迈。大自然的鬼斧神工,令人惊叹,妙不可言。

Stalactite refers to carbonate deposits of various shapes, such as stalactite, stalagmite and stela, which is formed under the deposition of calcium carbonate and other mineral substance in the cave of carbonate area under specific geological conditions during the long geological history. The stalactites in the karst caves of Donglan National Geopark are vivid and of various shapes . Stalagmites shaped like a sharp sword, which standupright against the sky; Columns shaped like giant columns, which are magnificant. All of those are the uncanny workmanship of nature, which is really amazing and wonderful.


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节理(裂隙)Joint(crack) 1004次播放 简介>>

节理是指由于岩石受力而出现的裂隙,但裂开面的两侧没有发生明显的位移。在岩石露头上,到处都能见到节理。节理按成因,分为原生节理和次生节理两大类。其中原生节理是指成岩过程中形成的节理;次生节理是指岩石成岩后形成的节理。

Joint refers to the crack caused by rock stress, with no obvious displacement on both sides of the parting plane. Joints can be seen everywhere on rock outcrops. According to the cause of formation, joints can be divided into two categories: primary joints and secondary joints, the former refers to the joint formed during diagenetic process, while the latter refers to that formed after diagenesis.


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边石坝Rimstone dam 1016次播放 简介>>

边石坝是在坡地或沟谷中大量结晶型钙华快速沉积而形成的小型梯田状地貌的石埂边坝。由于凸起部位层流水流速加快,水中的二氧化碳分压降低并逸出,从而导致在凸起处发生碳酸钙淀积。放眼望去,宛若梯田,层层叠叠,高低错落。

Rimstone dam is a landform shaped like terraced fields, which is formed after a rapid deposition of a large number of crystalline travertinein a sloping field or valley. In the bulge, the velocity of laminar flow quickens, as a result, the partial pressure of carbon dioxide decreases and overflows, resulting in calcium carbonate deposition near the bulge. Looking ahead, it looks like terraced fields.


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列宁岩Lenin rock 1024次播放 简介>>

列宁岩是一个大厅状的天然溶洞,该洞为早期地下水对山体侵蚀形成的溶洞,后因地壳抬升露于地表。列宁岩是广西农民运动讲习所旧址,走进列宁岩,就能感受到深深的红色气息。1922年3月,韦拔群在此组织革命同盟,与陈伯民等人在洞内开办东兰第一个农民运动讲习所,宣传马列主义,为创建右江革命根据地打下了坚实的群众基础。                                                                    

Lenin rock is a natural karst cave shaped like a hall, which was formed by underground water erosion to the mountain in early stage and was later exposed to the surface by the  crust uplift. It is a former site used for preaching place when the Guangxi Peasant Uprising took place. When approaching towards it,  you can fell the thick breath of revolution. In Mar. 1922, WeiBaQun gathered the Revolutionary League and set up the 1st preaching place for Peasant Uprising in this cave together with Chen Bomin and others to promote Marxism-Leninism, which has laid a solid mass base in creating the Youjiang Revolutionary Base.


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穿洞 Karst cave 1002次播放 简介>>

穿洞形成于溶蚀发育的洞穴,是已脱离地下水位、高悬于山体上部、两端为开口状的残留溶洞通道。洞壁常有边槽、流痕、贝窝等形态,洞体呈通道式,是流水岩溶的一种标志性形态。东兰国家地质公园有大量穿洞,如著名的月亮山穿洞、天宝山穿洞等。

Karst cave is formed in the cave where dissolution develops and it is an open residual cave passage that has been separated from the underground water level and was hanged above the top of the mountain. On the cave wall, there exists notch, flow mark, flute and other shapes. The body of the cave shaped like a channel, which is a typical form of fluvial karst. There are a large number of karst caves in Donglan National Geopark,such as famous Tianbaoshan and Moon mountain karst cave.


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