File kinds
Generated from the reader registry (ophiolite.reader-registry/1) pinned by this release; do not edit by hand.
The upload page, the folder report and Python read the same list. A folder upload holds at most 500 files;
each file keeps the limits of its kind. The deployment’s own limits are on Large files.
| Kind | Extensions | Accepts | You are asked | Read with |
|---|---|---|---|---|
| Well log (LAS 2.0) | .las | LAS 2.0 · UTF-8 · up to the deployment’s request limit in one request / 100,000 rows / 64 curves. Original depth, units and missing samples are preserved. | nothing | its reader |
| Well tops (CSV) | .csv, .txt | CSV with columns name and md, optionally tvd and source · up to 10,000 tops of one well. Names, depths and order are kept; empty cells stay missing; other columns are listed as not read. | Depth unit, Depth reference | its reader |
| Deviation survey (CSV) | .csv, .txt | CSV with columns md, inclination, azimuth and optionally tvd · measured depth must increase · up to 10,000 stations. | Depth unit, Azimuths measured from, Depth datum | its reader |
| Horizon grid (ESRI ASCII) | .asc, .txt | ESRI ASCII grid (ncols, nrows, corner or centre origin, cellsize, optional NODATA_value) · up to the deployment’s grid limit in cells. NODATA cells stay missing; nothing is interpolated. | Coordinate system, Map unit, Values are, Value unit, Positive direction, Vertical datum | its reader |
| Triangulated surface (text) | .mesh, .txt | Ophiolite mesh text: ”# ophiolite-mesh 1”, optional attributes, vertices (x y z, ”-” for missing) and triangles (three vertex numbers from 0) · up to 200,000 vertices within the deployment’s request limit. Only triangle references are checked. | Coordinate system, Map unit, Values are, Value unit, Positive direction, Vertical datum | its reader |
| Point set (CSV) | .csv, .txt | CSV with x, y, optionally z and up to 16 numeric columns · up to 100,000 points within the deployment’s request limit. Empty cells stay missing. | Coordinate system, Map unit, Values are, Value unit, Positive direction, Vertical datum | its reader |
| Fault sticks (OpendTect) | .fss, .dat, .txt | OpendTect fault-stick text: one point per line as x y z stick number (an optional node number is ignored) · at least two points per stick, up to 200,000 points. Sticks and points keep the order of the file. | Coordinate system, Map unit, Values are, Value unit, Positive direction, Vertical datum | its reader |
| Seismic volume (SEG-Y) | .sgy, .segy | SEG-Y rev 1 or 2, big-endian, IBM or IEEE 4-byte samples, one trace length, a full inline × crossline grid · up to the deployment’s file limit. The file is kept byte for byte; sections are read one at a time. | Samples are, Coordinate system, Datum | its reader |
| Petrel points with attributes | .txt, .dat | Petrel “Points with attributes” export with its CRS metadata and README beside it, read with the standard layout. | Coordinate system, Map unit, Values are, Value unit, Positive direction, Vertical datum | an import recipe; files beside it: NAME.crsmeta.xml, README.txt |
| Horizon points (OpendTect) | .xyz, .txt | OpendTect horizon ASCII export (“X” “Y” “Z” header), read with the standard layout. | Coordinate system, Map unit, Values are, Value unit, Positive direction, Vertical datum | an import recipe; files beside it: README.txt |
| Well location (JSON) | .json | One JSON object with x, y, crs and elevation_reference; the file states its own coordinate system. | nothing | its reader |
| Wavelet (text) | .txt | Ophiolite wavelet text (”# ophiolite-wavelet 1”); the file states its own sampling and polarity. | nothing | its reader |
| Rock model section (text) | .txt | Ophiolite model-section text (”# ophiolite-model-section 1”); the file states its own axes and rocks. | nothing | its reader |
| Seismic section (text) | .txt | Ophiolite seismic-section text (”# ophiolite-seismic-section 1”); the file states its own axes. | nothing | its reader |
| Surface grid (GeoTIFF) | .tif, .tiff | GeoTIFF · one band of 32- or 64-bit floats, north-up, 2 × 2 to 100,000 cells, no band scale or offset. A coordinate system the file does not state is asked; nothing is guessed. | Coordinate system, Value unit, Vertical datum | its reader |
A field you are asked about and leave alone is “Not stated”. A file the standard layout of an import recipe cannot read waits in the folder report; see Upload a folder.