Soudry, David Diagenetic trends of fluorine concentration in Negev phosphorites, Israel: implications for carbonate fluorapatite composition during phosphogenesis - Oxford International Association of Sedimentologists August 2001 - pp. 723-743 ilus., tbls. Subjects--Topical Terms: DIAGENESISFLUORAPATITAFOSFOGENESISFOSFORITASFRANCOLITA Subjects--Geographic Terms: ISRAELNEGEV