Intrusive igneous rock (NO.11.0002)

Find location

Site type

Consumption site

Location

Belgium; West-Vlaanderen; Knokke-Heist

Site name

Knokke, Witte Hoeve

Excavation or Survey Team

Additional contextual information

Provenance

Location

Norway

Supposed site(s) of provenance

Oslo region

Additional information

interpreted as a glacial erratic collected from cobble beaches in the Baltoscandian area; probably geologically originates from the region around Oslo

Natural color

purplish brown to greyish brown (liver-colored); cream-colored phenocrysts

Aged color

Components

rectangle-shaped feldspar phenocrysts

Texture

porphyritic

Structure

Weathering

Diagnostic features

rectangle-shaped feldspar phenocrysts

Additional information

Sample type

Tool

Artefact information

ballast stone, sample number KWH-4

Inventory number

NO.11.0002

Collection

Archaeological Department, Ghent University

Donating institute/person

Host collection

Other samples available

No

Sample collection method

Archaeological Field Survey

De Clercq et al. 2017

Full reference

De Clercq W., Dreesen  R., Dumolyn J., Leloup W. & Tracht J. 2017. Ballasting the Hanse: Baltoscandian erratic cobbles in the Later Medieval port landscape of Bruges. European Journal of Archaeology 20, 4: 710-736.

Dreesen & De Clercq 2020

Full reference

Dreesen  R. & De Clercq W. 2020. Ballaststenen en hun rol in het voormalige middeleeuwse Brugse havenlandschap. In: De Kock T., De Ceukelaire M. & Van der Star C. (Eds.). Pracht en Praal, 7e Vlaams-Nederlandse natuursteendagen, 12-13 maart 2020, Antwerpen. Professional Papers of the Geological Survey of Belgium, 318: 7-18.