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Notes 10-05-06 - Horizontal dimensions Grid coordinate...

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Sec. 31, T 44N, R 2E, (always write like this-LABEL CORRECTLY) -UTM’s the first three (east/west) or four (north) are the tick marks the other 2 are derived from scale. ================================================== Mapping sites… -Radiation off-set does not deal with real “nuclear” radiation but rather deals with rotating off a center point of a grid at a site. ================================================= Open area method- -excavating large areas of site to expose horizontal area, very wide but shallow good for analyzing recent single period occupations Step trenching -- l --- 1 ----- like that -used for larger site, ie burial mound. -it stabilizes the site too -large area opened at surface and as dig descends it gets narrower by series of steps (prevents telephone bothing) Transect trenching -used to locate extent of site -long/deep trench Dig is only as good as excavating methods -Need to take specific notes and records ===================================================
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Unformatted text preview: Horizontal dimensions Grid coordinate system Establish a site datum Vertical dimensions Excavate in levels 1. stratigraphic (natural) levels 2. arbitrary levels (done in 10 cm levels) =================================================== NEW WORD In situ = means am artifact in original position =================================================== Munsel color book – used to record the color of the dirt-never did just to dig. You need a purpose a question (a possession)-wash and catalogue all artifacts-Radiation offset- way of mapping out entire site two means by which we do surface collection -arch site less then 100meter diameter we use radiation offset-arch site larger than 100meter diameter we use grid system asimuth- degrees distance- distance from center elevation- elevation above datum UTM aims a center of site HOWEVER if site is larger then 50metrs then take three UTM points and triangulate center...
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