Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Surface faults in Paducah

This data is from the geologic map of the Paducah 1°x2° Sheet,
digitized by the Illinois State Geological Survey, John Nelson directing.
We obtained the digitized, exported coverage of faults and geology
from Barb Stiff ([e-mail]) 1995.09.05
Our intent is to show the overall fault pattern, and to show the locations
of the main exposed and near-surface faults for comparison to deep subsurface
structures. We made little attempt to edit details of the digitized faults,
beyond adding tick marks to indicate dip directions of a few normal faults.
For details such as exact locations, fault dips, separations, and cross-
cutting relations, users should consult the original geologic maps.

本数据集源自帕迪尤卡（Paducah）1°×2°图幅地质图，由伊利诺伊州地质调查局（Illinois State Geological Survey）在约翰·纳尔逊（John Nelson）的主持下完成数字化作业。我们于1995年9月5日从巴巴·斯蒂夫（Barb Stiff，邮箱：[e-mail]）处获取了经数字化处理的断层与地质要素导出数据集。本次数据的应用目标为呈现区域整体断层分布格局，并展示主要出露断层与近地表断层的空间位置，以便与深部地下构造开展对比分析。除为少量正断层添加倾角指示标记外，我们几乎未对数字化断层的细节进行修改完善。若需获取断层精确位置、倾角、断距及交切关系等详细信息，请用户查阅原始地质图件。