Stratigraphic section measurement

Knowledge graph centered on Stratigraphic section measurement with 23 nodes and 42 connections. Top connected: Atriplex canescens, Stratigraphy of the Colorado group, Upper Cretaceo, jar method, biostratigraphic correlation, sediment grain size.

Method synopsis

Detailed measurement and quantification of sedimentary structure types and their relative abundances in stratigraphic sections, including calculation of stratification ratios.

Synthesized from method descriptions across 2 papers using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Sedimentology of braided alluvial interval of Dakota Sandstone, northeastern New Mexico (1976). Implementations in other papers (listed below) may differ.

1. Measure sedimentary structures
   At each section the thickness of the braided alluvial interval was measured with a steel tape, and the percentage of each variety of sedimentary structure was recorded on a lithic log. The thickness of each variety of sedimentary structure was measured to the nearest foot and recorded
   Quantities: Measurements to nearest foot precision across 12 sectionsDuration: Not specifiedConditions: Field measurement conditions at outcrops
   Equipment: steel tape, lithic log forms
2. Calculate sedimentary structure statistics
   A Fortran computer program SED was used to calculate the total thicknesses and percentages of each variety of sedimentary structure in each of the 12 sections. The program also calculated the stratification ratio (planar cross stratification/planar cross stratification + horizontal stratification)
   Quantities: Analysis of all sedimentary structure data from 12 sectionsDuration: Not specifiedConditions: Computer data processing
   Equipment: SED computer program

Typical Equipment

• steel tape
• SED computer program

Output Measurements

• stratification ratio
• structure percentages
• facies classification

Papers Using This Protocol (2)

Species Studied With This Protocol