Disconformities

Disconformities are unconformities (including hiatuses) and faults. They can be defined formally and informally in various ways:

Interval boundaries - usually using LOG samples; all interval boundaries at the sample use a disconformable boundary type.
Sequence picks - using LOG sample, the disconformity is formally identified as a surface from a sequence scheme.
Depth/age curve - specifies the depth and also the duration (in Ma) of the disconformity. Use to create LOG samples for interval boundaries and sequence picks.
Disconformity data type (see below).

Disconformity Data Type

Use this data type to specify a disconformity which is not formally identified as a surface and not part of your depth/age interpretation. You may give it a label and display it in interval chart panels. Interval boundary types at the chosen sample will default to the disconformity type (and produce a warning if this is changed). You can update all boundary types at the chosen sample by changing the disconformity type.

Enter disconformities from the Interpretations tab in Samples & Interpretations. Select the Disconformities tab.

Disconformities are subject to versions - make sure you have the appropriate version selected before entering your data.

You must select a sample. Usually this will be a LOG sample type. You must also select a disconformable boundary type.

Fault types must have a throw (which can be positive or negative). The label is optional.

Charts

For interval panel types, set the "disconformities" option on. Disconformities show drawn across the panel if there is no interval with a boundary at that sample.

Page last updated: 26-Nov-2015 10:19