usgs_porcucommodityOfficial surveyAuthoritative

USGS Porphyry Copper Deposits (grade & tonnage)

USGS

690 porphyry-copper deposits worldwide; ore tonnage + Cu/Mo/Au/Ag grades

Source

How it's published

Feed (what to expect)

Frozen 2008 CSV-in-ZIP from mrdata (OFR 2008-1155); vendored, no upstream updates.

Quirks

ore tonnage shared across the deposit polymetallic commodities; contained metal computed from ore x grade
first of the USGS deposit-type grade-and-tonnage family (sed-Cu/VMS/podiform-chromite/Ni-Co-laterite remain)

Per-deposit grade+tonnage the locality DBs (MRDS/CMDB) lack; emitted as DepositResource (Identified resource).

Reconciliation

Schema

Feeds (axes)

Supply

Record kinds

DepositResource

Identifier schemes

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