作者: Annette S. Ortiz Miranda , Dale Kronkright , Marc Walton
DOI: 10.1186/S40494-020-00451-7
关键词: O'Keeffe 、 Painting 、 Condition survey 、 Oil painting 、 Art history
摘要: During a routine condition survey in 2007 at the Georgia O’Keeffe Museum Santa Fe, micro-protrusions were found scattered across surfaces of artist’s oil paintings produced between 1920 and 1950. In many her works, including Pedernal (1941) A Man from Desert (1941), lead soaps aggregated painting surface, forcing surrounding paint to deform into pin-sized protrusions. The structure composition protrusions was analyzed determine why they formed. Microsamples removed four O’Keeffe’s investigated using combination SEM–EDX, GC–MS, FT-IR. combined GC–MS FT-IR results indicate that contain primarily carboxylates. obtained for series ground samples different then compared with collected commercially pre-primed canvas roll house Ghost Ranch, NM. We identified two types canvases: i) ii) artist primed canvas. This has similar morphology layers additionally these grounds an excess free fatty acids metal carboxylates (lead soaps) based on comparison canvases herself. Based analytical commercial canvas, we concluded use this particular 1950 play important role observed micro-protrusions.