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瘤状灰岩的含义是普遍存在有瘤状形态的和类似产出特征的碳酸盐岩,是由瘤体和基质组合而成。瘤状灰岩从颜色、形态存在的形式多种多样,其中还含有许多的生物碎屑,在含有瘤状灰岩的岩层中常见有张性裂缝与缝合线构造,其能够变成油气运移的通道,又可以成为储存油气的场所。本文从湖北松滋刘家场大湾组瘤状灰岩的沉积特征,瘤状灰岩宏观特征,瘤状灰岩成因及地质意义这三个方面来进行研究,其研究成果能对含有瘤状灰岩其他地区的提供一些理论基础。
The meaning of tumorous limestones is that carbonate rocks are commonly found in the form of nodules and similar features. They are composed of the tumor and the matrix. Tumor limestone from the color, form a variety of forms exist, which also contains a lot of biological debris, rock layer containing tumorous limestone often cracks and suture structure, which can become a hydrocarbon migration Of the channel, but also can become a place to store oil and gas. In this paper, from the sedimentary characteristics of the Dawang Formation Dawang Formation in Songzi, Hubei Province, the macroscopic characteristics of the nodulated limestone, the origin of the nodulated limestone and its geological significance, Other parts of the limestone provide some theoretical basis.