{"id":732,"date":"2017-07-04T10:17:21","date_gmt":"2017-07-04T14:17:21","guid":{"rendered":"https:\/\/carleton.ca\/rangifercentral\/?page_id=732"},"modified":"2017-07-04T10:19:25","modified_gmt":"2017-07-04T14:19:25","slug":"analysis-of-peel-photographs-and-samples","status":"publish","type":"page","link":"https:\/\/carleton.ca\/rangifercentral\/dating-pictographs-and-petroglyphs-through-their-fallen-pigment-or-stone-dust-in-underlying-archaeological-floors-a-new-method\/analysis-of-peel-photographs-and-samples\/","title":{"rendered":"Analysis of Peel Photographs and Samples"},"content":{"rendered":"
    \n
  1. Enlarge level, glue paper and sifted soil photos using PhotoShop, or Paint.Net to show X and Y coordinates of fallen particles by pixel no. Common red ochre, charcoal and black manganese dioxide are easily seen in light soil or sand; yellow ochre and other pigments less so. Level and glue paper particle coordinates that do not match are counted separately,<\/li>\n
  2. Petroglyph particles are fine dust. Hammerstone fragments are much larger and of different rock.2<\/sup>Some dust retains the dark outer manganese patina in desert art; some, the light-coloured rock interior. Where exterior and interior rock colour is similar, hammerstone fragments are used to define art levels.<\/li>\n
  3. Table in columns by photo number; level; X and Y particle coordinates in level surface, glue paper, sifted soil photos and glue paper microscopy.<\/li>\n
  4. Do particle locations match in level surface and inverted glue paper jpgs?<\/li>\n
  5. Add distinct particle locations in part 25 to sifted level jpg locations. Total.<\/li>\n
  6. Select bottom level with particles. Check glue sheet for AMS material.<\/li>\n
  7. Remove particles with water-saturated Q-tip, place in gel caps, send to lab.<\/li>\n
  8. As rock art sites were revisited in the past, upper particle levels can be dated. Particles falling from weathering are fewer than those from art application.<\/li>\n<\/ol>\n\n
    \n\t

    \n\t\tPetroglyph Dating Method<\/a>\n\t<\/p>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"

    Enlarge level, glue paper and sifted soil photos using PhotoShop, or Paint.Net to show X and Y coordinates of fallen particles by pixel no. Common red ochre, charcoal and black manganese dioxide are easily seen in light soil or sand; yellow ochre and other pigments less so. Level and glue paper particle coordinates that do […]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":129,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","_mi_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"yoast_head":"\nAnalysis of Peel Photographs and Samples - Rangifer Central<\/title>\n<meta name=\"description\" content=\"Enlarge level, glue paper and sifted soil photos using PhotoShop, or Paint.Net to show X and Y coordinates of fallen particles by pixel no. 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