崂山花岗岩大型气泡状晶洞的发现及意义  

DISCOVERY OF LARGE BUBBLE-LIKE MIAROLITIC GRANITES IN LAOSHAN AND ITS SIGNIFICANCE

作　　者：宋召军[1] 刘锡清[2] 宫丽明 李海锋 陈桥[1] 顾畛逵[1] 

机构地区：[1]山东省沉积成矿作用与沉积矿产重点实验室,山东科技大学地质科学与工程学院,青岛266510 [2]国土资源部青岛海洋地质研究所,海洋油气资源与环境地质国土资源部重点实验室,青岛266071 [3]甘肃煤田地质局庆阳资源勘查院,甘肃庆阳745000

出　　处：《海洋地质前沿》2013年第12期1-5,共5页Marine Geology Frontiers

基　　金：国家自然科学基金(41106036;40901027;41206053)

摘　　要：近年来,在崂山A型花岗岩中发现了一些大型气泡状晶洞,最大的直径可达3.1m,远超过以往报道过的花岗岩晶洞。这一发现,不仅对研究崂山花岗岩形成的原生环境有重要意义,而且也揭示了崂山花岗岩"天然石臼"的真正成因。同时,从洞穴学角度也肯定了一种新的洞穴类型的存在。花岗岩大型气泡状晶洞是珍稀的地质遗迹,具有较高的观赏和旅游价值,应加以保护。Recently, some large bubble-like rniarolitic caves in an A-type granite of the Laoshan Moun-tain have been discovered. The largest cave is up to 3.1 m in diameter, far exceeding the granitic mi-arolitic caves previously reported. The discovery is helpful to the study of the original environment of the Laoshan granite and to the genetic interpretation of the microqandform of ＂natural-mortar＂ there. The existence of a new genetic type-＂bubble-like rniarolitic caves＂ in speleology is also confirmed by this discovery. Such large bubble-like rniarolitic caves are rarely observed in geological records. It has ornamental, scientific and tourism value.

关 键 词：花岗岩 晶洞 天然石臼 气泡洞 地质遗迹 

分 类 号：P583[天文地球—岩石学]