The State Geologic Map Compilation (SGMC) Geodatabase of the Conterminous United States
The State Geologic Map Compilation (SGMC) Geodatabase of the Conterminous United States
复制标题
美国本土国家地质图编制 (SGMC) 地理数据库
DOI：
--
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
J. Horton
中科院分区：
文献类型：
--
作者：
J. Horton
美国州地质图汇编（SGMC）地理数据库（https://doi.org/10.5066/F7WH2N65）是一个由48个州地质图组成的无缝空间数据库，比例尺从1:5万到1:10万不等。国家数字地质图数据库对于解释其他数据集至关重要，这些数据集支持许多类型的国家尺度研究和评估，例如提供地球化学、遥感或地球物理数据的数据集。SGMC是美国地质调查局发布的美国初步综合地质图数据库的汇编。SGMC地质数据库还包含七个州的最新数据和七个全新的州地质图，这些地质图是自初步数据库发布以来添加的。使用彻底的质量保证/质量控制程序，已经纠正了许多错误，并对初步数据集进行了增强。SGMC并不是一个真正的综合地质图数据库，因为地质单位还没有跨国界统一。然而，每个州地质图中包含的地质数据已经标准化，以便在全国范围内对岩性、年龄和地层学进行空间分析。关于创建该数据集的程序和方法的完整讨论可在随附的报告中找到：Horton， j.d., San Juan， C.A, and Stoeser, d.b., 2017, the State geological Map Compilation (SGMC) geodatabase of the United States（第11版）。1.1, 2017年8月)：美国地质调查数据系列1052,46页，https://doi.org/10.3133/ds1052。
The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States (https://doi.org/10.5066/F7WH2N65) represents a seamless, spatial database of 48 State geologic maps that range from 1:50,000 to 1:1,000,000 scale. A national digital geologic map database is essential in interpreting other datasets that support numerous types of national-scale studies and assessments, such as those that provide geochemistry, remote sensing, or geophysical data. The SGMC is a compilation of the individual U.S. Geological Survey releases of the Preliminary Integrated Geologic Map Databases for the United States. The SGMC geodatabase also contains updated data for seven States and seven entirely new State geologic maps that have been added since the preliminary databases were published. Numerous errors have been corrected and enhancements added to the preliminary datasets using thorough quality assurance/quality control procedures. The SGMC is not a truly integrated geologic map database because geologic units have not been reconciled across State boundaries. However, the geologic data contained in each State geologic map have been standardized to allow spatial analyses of lithology, age, and stratigraphy at a national scale. A full discussion of the procedures and methodology used to create this dataset is available in the accompanying report: Horton, J.D., San Juan, C.A., and Stoeser, D.B, 2017, The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States (ver. 1.1, August 2017): U.S. Geological Survey Data Series 1052, 46 p., https://doi.org/10.3133/ds1052.