甘肃宝积山盆地上三叠统舌叶属化石形态模型建立初探  

PRELIMINARY STUDY ON FOSSIL MORPHOLOGY MODEL OF Glossophyllum FROM THE UPPER TRIASSIC OF BAOJISHAN BASIN IN GANSU

作　　者：万震[1] 赵海钧[1] 刘洁[1] 马福军[1] 

机构地区：[1]兰州大学地质科学与矿产资源学院,甘肃兰州730000

出　　处：《甘肃地质》2013年第2期33-37,共5页Gansu Geology

基　　金：国家自然科学基金(编号:41272026)资助

摘　　要：本文试用数码相机,图形处理和数据分析软件相结合的方法,对采集于甘肃省白银市宝积山盆地上三叠统南营儿组舌叶属化石叶片进行数字化,获得其叶形的主要基本参数数据,使用数据分析软件建立舌叶属叶片上、下边缘函数曲线模型,利用模型对舌叶属化石叶片特征进行讨论,进而对保存不完整的叶片原形进行恢复,结果表明重建的化石形态与原叶片宏观特征吻合程度很好,建立叶片数学模型方法恢复不完整保存舌叶整体形态具有可行性。A new method, combining with digital camera, graphics processing and data analysis software, is used for reconstructing the leaf shape of the incomplete Glossophyllum fossils from the Upper Triassic Naying＇er Formation in Baojishan basin, Baiyin City, Gansu Province. In order to get the basic parameters of the leaf, all fossils must be digitized. Based on the data-analyzing software, the function curve models of upper and lower margins of the digitizing leaf were obtained. Then the features of the fossil Glossophyllum leaf were discussed according to the model. It shows that the digitized shapes are coincided with the original shapes from the fossils. The method to establish mathematical model to reconstruct the incomplete shape of the fossit leaf is feasible.

关 键 词：舌叶 宝积山盆地 形态模型 上三叠统 

分 类 号：Q914[天文地球—古生物学与地层学]