One-foot block model

Louisiana Sand & Gravel Site · PostGIS spatial engine · exact one-foot depth slices

Internal planning model

Planning-grade, not a reserve statement. The model interpolates six accepted drill collars across a provisional reconstructed outline. Use it to compare areas and collect better data—not as a surveyed boundary, bankable reserve, or final mine design.

Historical pond mining · 30-acre pond historical glass-sand working

Company-reported: approximately 30 acres mined 25 ft for glass sand; All material other than glass sand reportedly left in place; quantity and grade unmeasured.. Status: management report pending validation.

Reported interval0–25 ft below pre-mining surface

25 × 25 × 1 ft block equivalents≈52,272 cell-layers

Nominal full-area prism≈1,210,000 yd³

Spatial assignmentPond polygon pending

Block-model treatment: the reported 0–25 ft history is recorded against this model baseline, but not deducted from tons or assigned to individual cells yet. The prism figure is only a 30-acre × 25-ft geometric envelope, not measured glass-sand production. Map the pond boundary and bathymetry before changing cell classifications; residual material is reported left in place and remains unquantified.

Checking model status…Connecting to the PostGIS engine

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3D geological block explorer

One-foot layers · Louisiana drill logs · movable cutaway sections

Plan mining section →

Loading the active model…

Drag to rotate. Move the section controls to expose the deposit interior.

Drag: rotate · Shift-drag: pan · Pinch / scroll: zoom · Click: inspect

Reading supported one-foot blocks…

Display controls

Color scale

Vertical exaggeration

Depth interval below ground (ft)

N–S section position · 55%

E–W section position · 45%

Block gridDrill logsSection planes

Inspect a drill hole

Explore the deposit

Click an exposed block or select a drill hole to review its logged materials and model values.

Waiting for model data.

Model grid—

One-foot blocks—

Drill-log support coverage—

Modeled outline—

Gross in-situ tons—

Product-bearing tons—

Product-bearing yield—

Estimated product value—

Modeled cost—

Modeled net value—

Loading spatial layer…

Click inside the model for an exact 1 × 1 × 1 ft query

Exact point query

Click any point inside the property outline. The drill-log classification is recalculated at that longitude, latitude, and one-foot depth layer; product-bearing tonnage is not a plant recovery estimate.

What this layer means

Each map footprint is a configurable planning cell. Vertically, every modeled record is exactly one foot thick. With a compatible property DEM run connected, drill intervals and blocks are compared on absolute one-foot elevation bands, and each block stores ground, top, and bottom elevations. Edge cells are clipped to the provisional outline, so tonnage uses actual clipped area.

Classification: categorical inverse-distance weighting of logged materials matched to the block’s absolute elevation band. Coarse and oversize fractions use distance-weighted collar values.

Confidence: combines material agreement, nearest-hole distance, and number of supporting holes, capped at 65% because current drilling is sparse.

Coverage: only depth cells supported by logged intervals are classified and included in tonnage/value totals. Blank cells indicate insufficient drill-log support at that absolute elevation; they are unknown, not zero-grade or waste. The coverage metric reports modeled blocks divided by all plan-cell × one-foot layer positions.

Build or revise the block model

A 25 × 25 ft horizontal grid preserves one-foot vertical resolution at a manageable size. A literal 1 × 1 × 1 ft property-wide database would exceed 600 million rows; exact point queries still resolve a one-cubic-foot unit at any clicked location.

One-foot product yield by class · active run

Drill-log-derived geological product-bearing estimate before commercial plant washing losses. Values use the editable class prices.

Product class	% of gross tons	Estimated tons	% of product tons	Estimated value	% of value
Waiting for a completed run.

Drill-log lithology support

Material	Blocks	In-situ tons	Product-bearing tons	Modeled net value
Waiting for a completed run.

Controls on interpretation

Boundary

The modeled outline is reconstructed from the production portal and is approximately 182 acres. The deed records 180.49 acres. Replace it with the 1994 survey geometry when received.

Drilling density

Six collars are far too sparse for a final reserve or excavation control model. Low-confidence classified blocks remain visible; positions with no logged-interval support are blank and excluded from totals.

Economics

97.9 lb/ft³, prices, and unit cost are editable planning assumptions. Product-bearing yield is classified from drill-log lithology; class proportions are based on distance-weighted collar sieve data. Commercial washing recovery is not established by current drill logs and is not applied.