Ochre Pigment Processing

Grinding, heating, and mixing mineral pigments for body marking, cave art, ritual objects, and surface decoration.

Core metadata

ID: ochre_pigment_processing
Era: Ancient
First known date: -100000 (millennium)
Region: South Africa / Blombos Cave
Review status: source_checked
Maturity: N/A

Prerequisites

Dependents

None.

Fields

None.

Node sources

A 100,000-year-old ochre-processing workshop at Blombos Cave, South Africa (Science, 2011, primary_paper) • Supports: node
Locator: Abstract: excavations at Blombos Cave revealed a processing workshop where a liquefied ochre-rich mixture was produced and stored in abalone shells 100,000 years ago.

Prerequisite edge evidence

Edge/source evidence summary:

Prerequisite edges: 2
Average edge confidence: 75%
Prerequisite sources: 2
expert_inference: 2

Prerequisite	Type	Confidence	Evidence level	Note	Sources
Fire Control (fire_control)	historical_predecessor	75%	expert_inference	Fire Control is an earlier historical predecessor or foundation, not a one-to-one engineering dependency.	Microstratigraphic evidence of in situ fire in the Acheulean strata of Wonderwerk Cave, Northern Cape province, South Africa (Proceedings of the National Academy of Sciences, 2012, primary_paper) • Supports: edge
Stone Tool Making (stone_tool_making)	historical_predecessor	75%	expert_inference	Stone Tool Making is an earlier historical predecessor or foundation, not a one-to-one engineering dependency.	3.3-million-year-old stone tools from Lomekwi 3, West Turkana, Kenya (Nature, 2015, primary_paper) • Supports: edge

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