| Boron and borates RB Kistler, C Helvaci Industrial minerals and rocks 6, 171-186, 1994 | 235 | 1994 |
| Borate deposits of Turkey and Argentina; a summary and geological comparison C Helvaci, RR ALONSO Turkish Journal of Earth Sciences 9 (1), 1-27, 2000 | 209 | 2000 |
| Stratigraphy, mineralogy, and genesis of the Bigadiç borate deposits, Western Turkey C Helvaci Economic Geology 90 (5), 1237-1260, 1995 | 170 | 1995 |
| Sulphur, sulphate oxygen and strontium isotope composition of Cenozoic Turkish evaporites MR Palmer, C Helvací, AE Fallick Chemical Geology 209 (3-4), 341-356, 2004 | 135 | 2004 |
| Stratigraphy and geochronology of the Early Miocene volcanic units in the Bigadiç borate basin, Western Turkey F Erkül, C Helvaci, H Sözbilir Turkish Journal of Earth Sciences 14 (3), 227-253, 2005 | 123 | 2005 |
| Evidence for two episodes of volcanism in the Bigadiç borate basin and tectonic implications for western Turkey F Erkül, C Helvaci, H Sözbi̇li̇r Geological Journal 40 (5), 545-570, 2005 | 117 | 2005 |
| Presence and distribution of lithium in borate deposits and some recent lake waters of west-central Turkey C Helvaci, H Mordogan, M Çolak, I Gündogan International Geology Review 46 (2), 177-190, 2004 | 116 | 2004 |
| Sedimentology and diagenesis of Miocene colemanite-ulexite deposits (western Anatolia, Turkey) C Helvaci, F Orti Journal of Sedimentary Research 68 (5), 1021-1033, 1998 | 107 | 1998 |
| The boron isotope geochemistry of the Neogene borate deposits of western Turkey MR Palmer, C Helvaci Geochimica et Cosmochimica Acta 61 (15), 3161-3169, 1997 | 102 | 1997 |
| Stratigraphy and Geochemical Features of the Early Miocene Bimodal (Ultrapotassic and Calc-alkaline) Volcanic Activity Within the NE-trending Selendi Basin, Western Anatolia … Y Ersoy, C Helvaci Turkish Journal of Earth Sciences 16 (2), 2007 | 97 | 2007 |
| Occurrence of rare borate minerals: Veatchite-A, tunellite, teruggite and cahnite in the Emet borate deposits, Turkey C Helvacı Mineralium Deposita 19, 217-226, 1984 | 97 | 1984 |
| Petrogenesis and 40Ar/39Ar geochronology of the volcanic rocks of the Uşak-Güre basin, western Türkiye Ö Karaoğlu, C Helvacı, Y Ersoy Lithos 119 (3-4), 193-210, 2010 | 90 | 2010 |
| Türkiye borat yatakları jeolojik konumu, ekonomik önemi ve bor politikası C HELVACI Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi 5 (1), 4-41, 2003 | 89 | 2003 |
| Sodium sulphate deposits of Neogene age: the Kirmir formation, Beypazari basin, Turkey F Ortı, I Gündogan, C Helvaci Sedimentary Geology 146 (3-4), 305-333, 2002 | 82 | 2002 |
| The boron isotope geochemistry of the Kirka borate deposit, western Turkey MR Palmer, C Helvaci Geochimica et Cosmochimica Acta 59 (17), 3599-3605, 1995 | 81 | 1995 |
| GEOLOGICAL SETTING AND MINERALOGY OF EMET BORATE DEPOSITS, TURKEY. C Helvaci, F RJ | 78 | 1976 |
| Geochemical discrimination of volcanic rocks associated with borate deposits: an exploration tool? PA Floyd, C Helvaci, SK Mittwede Journal of Geochemical Exploration 60 (3), 185-205, 1998 | 77 | 1998 |
| Genetic relations between skarn mineralization and petrogenesis of the Evciler Granitoid, Kazdağ, Çanakkale, Turkey and comparison with world skarn granitoids YY ÖZTÜRK, C HELVACI, M Satir Turkish Journal of Earth Sciences 14 (3), 255-280, 2005 | 67 | 2005 |
| Geological features of Neogene basins hosting borate deposits: an overview of deposits and future forecast, Turkey C HELVACI Bulletin of the Mineral Research and Exploration 151 (151), 169-215, 2015 | 62* | 2015 |
| Apatite-rich iron deposits of the Avnik (Bingöl) region, southeastern Turkey C Helvaci Economic Geology 79 (2), 354-371, 1984 | 62 | 1984 |
