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- In this paper, the straticulate dolostone and spatulate dolostone in Lower Ordovician strata of Well Tazhong 1 were studied using petrologic and geochemical methods. 本文选择塔中地区塔中1井下奥陶统藻纹层白云岩与夹层竹叶状白云岩作为对象,应用岩石学与地球化学方法对其成因问题进行了研究。
- Therefore, the straticulate dolostone and spatulate dolostones were rapidly formed by direct precipitation from vaporized seawater in tidal platform. 因此，塔里木盆地塔中1井钻遇的下奥陶统藻纹层白云岩与夹层竹叶状白云岩为潮坪环境下，从蒸发海水中快速沉积形成的。
- spatulate dolostone 竹叶状白云岩
- Petals spatulate, ca. 1 mm, caducous. 匙形的花瓣，长约1毫米，早落。
- Petals clawed, obovate or spatulate, rarely absent. 花瓣瓣爪，倒卵形或匙形，很少无。
- Petals white, spatulate, ca. 4 mm.Stamens ca. 10. 花瓣白色，匙形，约4毫米雄蕊约10。
- Petals white, spatulate, ca. 1.5 mm, apex obtuse. 花瓣白色，匙形，约1.;5毫米，先端钝。
- Dolostone is the main rock type of the Cambrian in this area. 从下寒武统石龙洞组开始都是白云岩沈积。
- Leaves lanceolate, elliptic or spatulate, 3- or 5-veined. 叶披针形，椭圆形或匙形，3-或者5脉。
- Perianth segments 3-5, narrowly obovate to spatulate. 花被片3-5，狭倒卵形到匙形。
- Epicalyx lobes spatulate, 8-15 mm, connate at base, hairy. 匙形的副萼裂片，8-15毫米，在基部合生，有毛。
- Petals broadly spatulate, apex slightly lobed or subentire. 花瓣宽匙形，先端稍微裂或近全缘。
- Gypsiferous mi-crocrystal dolostone and dolarenite formed by seepage-reflux ... 进行了白云石化分区分带研究,为下步勘探部署指明了方向。
- Calyx spatulate, ca. 7 mm, apex 5-toothed, densely minutely puberulent. 匙形的花萼，约7毫米，先端5齿，密被稍被微柔毛。
- Carbonate rocks are predominantly composed of intra-clastic dolostone, chert dolostone and sand-bearing dolostone. 碳酸盐岩以内碎屑白云岩、燧石白云儿和含砂白云岩为主。
- Petals 5, purple-red, narrowly spatulate, margin entire, claw attenuate. 花瓣5，紫红色，狭匙形，边缘全缘，瓣爪渐狭。
- Petals 5, spatulate, free, valvate, outside puberulent, apex introrse. 花瓣5，匙形，离生，镊合状，外面被微柔毛，先端内向。
- Petals white, spatulate, ca. 0.8 mm, shorter than stamens, apex emarginate. 花瓣白色，匙形，约0.;8毫米，短于雄蕊，先端微缺。
- Petals yellowish, spatulate, apex truncate, slightly longer than sepals. 花瓣淡黄，匙形的，先端截形，稍长于萼片。
- Crystalline dolostone is formed by seepage-reflux dolomitization and burial dolomitization. 晶粒白云岩有两种成因：一为回流渗透白云石化；二为深埋藏白云石化。
