Categorii: Tot - preservation - damage - temperature - decomposition

realizată de Marco Bertolini 4 ani în urmă

195

Extrinsic Factors

The conditions under which a body is buried or found play a significant role in its preservation and decomposition. Water-logged environments, such as pit bogs, preserve bodies well due to acidic, cool, and anaerobic conditions that maintain soft tissues and internal organs but can demineralize bones.

Extrinsic 
Factors

From MOOC FORENSIC ARCHAEOLOGY AND ANTHROPOLOGY - Durham University - Teesside University - Future Learn

Marco Bertolini

Forensic Taphonomy

Extrinsic Factors

Plant activity

Fungi
causing

stains

damage

can penetrate the bone
Roots cause
stain
etch
can cause a great deal of physical damage to bones

Body immersed in water

body can be damaged by
See the paper
wood debris
stones
Movement
rivers

move the body parts away

aquatic ecology matters
barnacles love shoes by

Dr Paola Magni

cold temperature
slows down decomposition

Water-logging

Pit bogs
because

cool temperature

no oxygen (anaerobic condition)

acidic conditions

demineralise bones
preserve well the bodies

stomach content

internal organs

soft tissues

damaging for the bones
mineral exchanges

Temperature

Freeze-thaw
Accelerates decomposition process
Thaw

ice melt into water again

Freeze

water extends within pores

causes

bone fragmentation

Very cold

Oetzi

inhibit microbes

decomposing soft tissues

preserves bodies well
Warmth
Example

Tsunami

particularly if humid
accelerates

decomposition

Animal activity

Soil type

Acidity
Sand body

organic stain of the body

outlined print

demineralised skeletton

Sutton Hoo

will demineralise bones
Alkalinity
better preserves bones
like chalky soil

Coffin / Wrapping

Archaeothanatology
Henri Duday

Université de Bordeaux

Coffin void
different bone position

indication of burial practice

Lead coffin
anaerobic condition

inhibit bacterial action

protection

several hundred years

Depth of burial

Greater depth
better protection

extent rainwater

extremes in temperature

physical disturbances

Shallow grave
Scavengers access to it