四川盆地紫色岩及其风化壳地球化学特征研究数据集(1990年以前)  

A dataset for geochemical characteristics of purple rock and its weathering crust in the Sichuan Basin(before 1990)

作　　者：高美荣[1,2] 唐家良[1,2] 况福虹[1,2] GAO Meirong;TANG Jialiang;KUANG Fuhong(Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,P.R.China;Key Laboratory of Mountain Environment Evolvement and Regulation,Chinese Academy of Sciences,Chengdu 610041,P.R.China)

机构地区：[1]中国科学院、水利部成都山地灾害与环境研究所,成都610041 [2]中国科学院山地表生过程与生态调控重点实验室,成都610041

出　　处：《中国科学数据（中英文网络版）》2021年第2期249-255,共7页China Scientific Data

基　　金：科技基础资源调查专项项目(2017),中国南北过渡带综合科学考察(2017FY100900);中国科学院关键技术人才项目(2017),长江上游典型支流流域水质与水量数据整理与集成。

摘　　要：紫色土因其成土方式及速度,成为世界土壤中一种受科学界瞩目的特殊土壤种类。成土母质主要是三叠系、侏罗系、白垩系等地质时期形成的紫色砂页岩残积物、坡积物及风化壳等。紫色土在颜色、理化性状、矿物组成等方面继承母岩/母质特性。本数据集基于《中国紫色土》(上篇)中紫色岩及其风化壳地球化学特征的研究成果进行整理归纳,形成有逻辑结构的数据集。整编的数据集包含11个数据表,内容包含4个方面:(1)紫色土成土岩层和母质的一般特征和性状;(2)紫色岩类型及其地球化学特征;(3)紫色风化壳的地球化学组成及特征;(4)四川盆地紫色风化壳分类及其诊断指标。本研究数据集是对紫色土研究历史成果的传承和有效保护,并为紫色土地区土壤肥力、生态环境和土地资源开发利用等方面的研究和应用提供数据支持。Purple soil is a special soil that has drawn the attention of the scientific community due to its mode and speed of pedogenesis.Its parent materials mainly include talus material,residual deposit,and weathered bedrock of purple sand shale formed in the Triassic,Jurassic,and Cretaceous systems.Purple soil has its color,physicochemical characteristics,and mineralogical composition derived from the parent materials.This dataset is a quarriable logical one,developed from the geochemical findings of purple rock and its weathered crust in the book of Purple Soils in China(Part I).The dataset consists of 11 worksheets,which can be divided into 4 parts:(1)general characteristics of parent materials and rock strata for purple soil,(2)purple rock types and their geochemical properties,(3)geochemical composition and characteristics of weathered purple rock crust,and(4)classification of the weathered purple rock crust and its diagnostic indicators in the Sichuan Basin of China.The dataset inherits and protects the historic findings in the research of purple soil and supports research and applications of soil fertility,ecological environment,and land resource utilization in the purple soil regions.

关 键 词：紫色岩 紫色风化壳 地球化学 风化特征 

分 类 号：P512.1[天文地球—地质学] P59