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羊庄盆地位于山东省枣庄市西北约30公里处。盆地大致呈北东——南西向展布,长20公里左右,宽约10公里,面积近200平方公里。新薛河及其支流水系自北东方向纵贯盆地,向西南蜿蜓流去,最后汇入微山湖。 1976年——1980年曾先后在该盆地北缘低山、丘陵上,主要由寒武纪灰岩构成之溶沟、溶槽中发现了多处规模大小不等的砾岩点,其标高多在170——350米之间。此种砾岩之砾石主要由燧石以及石英、赤铁矿组成,胶结坚硬,胶结物为钙质或泥质。砾石,特别是燧石成分之砾石,磨园度极佳,表面光滑且富有光泽。经选矿证实,砾石中普遍含有一定数量的金刚石。显然,此种含金刚石砾岩乃是一种新型的即岩溶裂隙型的金刚石古砂矿。这一发现为今后在鲁中南以及苏北低山丘陵区寻找金刚石原生矿,提供了可靠线索,开辟了广阔的前景。
Yangzhuang basin is located about 30 kilometers northwest of Zaozhuang City, Shandong Province. Basically, the basin exhibits a north-east-south-west distribution with a length of about 20 kilometers and a width of 10 kilometers and an area of nearly 200 square kilometers. The new Xue River and its tributaries of the water system runs through the basin from the northeast, to the southwest meandering, and finally into Weishanhu. 1976 - 1980 has successively in the northern margin of the basin on the hilly, hills, mainly composed of the Cambrian limestone limestone ditches, found in a number of different sizes of conglomerate conglomerates, the elevation of more Between 170 - 350 meters. The conglomerate of this conglomerate consists mainly of chert, quartz, hematite, cemented, and cements are calcareous or argillaceous. Gravel, especially gravel with flint composition, has an excellent degree of mill surface, a smooth and shiny surface. After the dressing confirmed that the gravel generally contain a certain amount of diamond. Obviously, this kind of diamond-bearing conglomerate is a new type of karst fractured diamond palazzo. This discovery provides reliable clues and opens up broad prospects for the future search for primary diamond mines in Lusaka South and in the hilly area of northern Jiangsu.