Archaeology and prehistory 60 / 79

Dating methods, garbology and ethnoarchaeology

How we tell time in the dirt, and how living craft explains dead cities.

Dating and ethnoarchaeology — revision graphic for UPSC Anthropology
Dating and ethnoarchaeology — revision graphic for UPSC Anthropology

Definition

What archaeological anthropology does

Dates first, then behaviour. Relative order vs a number of years.

  • Archaeology: past cultures from material remains. Archaeological anthropology reconstructs society from that evidence.
  • Remains: artefacts (made), ecofacts (seeds, bones, pollen), features (hearths, pits, walls).
  • Garbology: William Rathje, Rubbish: The Archaeology of Garbage — landfills as consumption stratigraphy.

Key points

Relative and absolute dates

  • Relative: stratigraphy, typology, fluorine, palaeomagnetism, a volcanic marker (Krakatoa 1883 as a teaching ash-line).
  • C-14: half-life 5730 years; organic only; calibration; not for deep time.
  • K–Ar: volcanic rock, very old; not for young sites.
  • TL: heated quartz/feldspar (pottery, bricks, hearths); saturation and ‘must have been heated’ limits.
  • ESR: microwave on enamel/carbonates. Fission-track: volcanic glass, zircon, obsidian (Neolithic Mexico obsidian teaching use).
  • Molecular clocks: mutation rate as a dating chart for lineages.
MethodBest onLimit
C-14Bone, charcoal, seedRange and calibration
K–ArVolcanic layersNeeds eruption
TLBurnt clay, potteryMust have been heated
StratigraphyAny layered siteGives order, not years

Method

Ethnoarchaeology

  • Living people as a model for site formation — term associated with Jesse Fewkes; developed by Lewis Binford (Nunamiut, Navajo among teaching cases).
  • J. Mark Kenoyer: Khambhat bead-makers as a window on Harappan craft, elite control, father-to-son skill, Mohenjo-daro debris.
  • Onge microlith analogy is used in some notes — treat as a cautious living parallel, not a time machine.

WRAP Exams coaching notes for UPSC Anthropology optional. Pair with the official syllabus when you need every heading in order.

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