example_data_strat: Example GeoDIVA forms data

Description

A dataset of forms loaded with load_geodiva_forms(). Useful for demonstrating plotting and analysis functions in this package.

Usage

example_data_strat

Arguments

Format

`example_data_strat`

A data frame with 244 rows and 39 columns:

stratsection_name: Character. Name/identifier of the stratigraphic section.
stratlayer_name: Character. Name/identifier of the stratigraphic layer.
date_described: Date. Date the section was described.
date_described_timezone: Character. Time zone of the description date.
stratlayer_desc: Character. Free‑text description of the layer.
stratlayer_order: Integer. Order of the layer within the section.
thickness_units: Character. Units for thickness (e.g., "millimeters", "centimeters", "meters").
thickness_typical: Numeric. Typical thickness of the layer.
thickness_min: Numeric. Minimum thickness of the layer.
thickness_max: Numeric. Maximum thickness of the layer.
depth_units: Character. Units for depth (see thickness_units).
depth_top: Numeric. Absolute depth to the top of the layer.
depth_bottom: Numeric. Absolute depth to the bottom of the layer.
depth_uncertainty_top: Numeric. Uncertainty in top depth.
depth_uncertainty_bottom: Numeric. Uncertainty in bottom depth.
layer_type: Character/Factor. Lithology or depositional type of the layer (e.g., "tephra fall", "soil").
stratlayer_color: Character. Color description.
grainsize_top: Numeric/Character. Grain size at the top of the layer.
grainsize_bottom: Numeric/Character. Grain size at the bottom of the layer.
stratlayer_grading: Character. Grading description (e.g. normal, reverse).
contact_lower: Character. Description of the lower contact.
contact_upper: Character. Description of the upper contact.
stratlayer_sorting: Character. Sorting description.
stratlayer_support: Character. Support description (matrix or clast).
tephra_concentration: Numeric/Character. Tephra concentration.
stratlayer_unit: Character. Stratigraphic unit designation.
tephra_name: Character. Formal tephra name.
tephra_guess: Character. Tentative tephra identification.
volcano_name: Character. Source volcano name. If multiple source volcanoes separated by "|".
eruption_name: Character. Source eruption name.
stratlayer_sample: Character. Sample identifier. If multiple samples separated by "|".
station_id: Character. Station identifier.
stratmeasuremethod: Character. Method used for stratigraphic measurement.
stratlayer_order_start_at_top: Logical. Whether ordering starts at the top.
section_notes: Character. Free‑text notes about the section.
Latdd: Numeric. Latitude in decimal degrees.
Longdd: Numeric. Longitude in decimal degrees.
LocationDesc: Character. Location description.
SampleID: List. Nested list column of sample IDs per layer.