Three dimensional geological modeling and survey-grade geospatial documentation of GSSPs: Using the Silurian System as a case study for the Geologic Time Scale

GSSP 的三维地质建模和测量级地理空间文档：使用志留系作为地质时间尺度的案例研究

基本信息

批准号：
209828332
负责人：
Professor Dr. Axel Munnecke
金额：
--
依托单位：
Forschungsschwerpunkt Paläontologie
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2011
资助国家：
德国
起止时间：
2010-12-31 至 2013-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/209828332?language=en
关键词：
Three dimensional geological modeling survey

项目摘要

Here, we propose a web-based, open-access, digital resource introduced here as the Digital Integrated Stratigraphy Project (DISP). The premise behind the DISP is to eliminate stratigraphic ambiguity associated with sample position within a stratigraphic section. For example, it is often difficult to compare one author’s measured section and data against another author’s geographically identical measured section and data as there are often discrepancies in the thicknesses of units, the assignments of litho- and chronostratigraphic terms, and/or the precise line of measured sections between authors. The DISP will provide a solution to this problem by producing a precise digital rendering of the outcrop using LIDAR and overlain digital photography to produce a cm to mm-scale accurate digital version of a given outcrop globally referenced by global navigation satellite positioning (GNSS). Once available online as shown at www.utdallas.edu/igeology , where a series of digital outcrops in Oklahoma are accessible, researchers could access the program and digital models. We also have the means to log their sample positions online directly onto the digital outcrop using a methodology where a user could attribute on an outcrop model by working on the 2D images thus allowing unambiguous stratigraphic reference for future research. The proposed project will serve as a proof-of-concept for the DISP with a limited initial goal of addressing the six Silurian Global Boundary Stratotype Sections and Points (GSSPs) located within Wales and England.

在这里，我们提出了一种基于网络的、开放访问的数字资源，称为数字综合地层学项目（DISP）。DISP 背后的前提是消除与地层剖面内样本位置相关的地层模糊性。通常很难将一位作者的测量剖面和数据与另一位作者在地理上相同的测量剖面和数据进行比较，因为单位的厚度、岩石和年代地层术语的分配经常存在差异，和/或作者之间测量剖面的精确线，DISP 将通过使用激光雷达和叠加数字摄影生成露头的精确数字渲染来提供给定的厘米到毫米级的精确数字版本，从而解决这个问题。通过全球导航卫星定位 (GNSS) 进行全球参考的露头一旦可在 www.utdallas.edu/igeology 上获取（可以访问俄克拉荷马州的一系列数字露头），我们还可以访问该程序和数字模型。方法使用一种方法将样本位置直接在线记录到数字露头上，用户可以通过处理二维图像来归因于露头模型，从而为未来的研究提供明确的地层参考。拟议的项目将作为概念验证。 DISP 的初始目标有限，即解决位于威尔士和英格兰境内的六个志留纪全球边界层型剖面和点 (GSSP)。