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EMET BORAT YATAKLARININ JEOLOJİK KONUMU VE MİNERALOJİSİ

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Abstract (2. Language): 
rThe Emet borate deposits are shown to be older and mineral - ogically more complem than was previously ihoughtj and to have formed within the muds of play a lakes during the Middle Oligocène. The borate minerals formed in two geochemically distinct sedimentary basinsj and are inierbedded with mmls^ volcanic tuffs and days? which appear to have been derived mostly from a volcanic terrain. Oolemanite predominates^ but other borates include meyerhofferiteß ulemiteß iunellite; teruggite, cahnite? hydroboraci « te and a form of veatchite. Calcitej gyp - sum; celesiiie* native sulphurj realgar and orpiment are the principal non-borates* The genesis of colemanite is problematicaL Evidence form elsewhere suggests that it may form by replacement of uleoeite or by dehydration of inyoite after burial. At Emetß no field evidence has been found which unambiguously supports either mode of formation. Later generations of colemanite occur in vughs and veins j and as fibrous margins to colemanite nodules. Other diageneiic changes include the par- Hal replacement of colemanite is often almost completely replaced by caleiie. Reserves are ample, but the presence of arsenic in both the sulphide and borate phases can present problems during mine* ml processing.
Abstract (Original Language): 
Bu yamda Emet borat yataMcmr nm, daha önce düşünüldüğünden daha yaş* h ve mineralojik bakımdan daha karmaşık olduğu ve Orta Oligosen-de play a göllerin* in çamurlarında oluştuğu gösterilmiştir, Bor mineralleri^ jeokimyasal farklılıklar gösteren iki sedimanier basende oluşmuş ve volkanik materyalden iürediği anlatılan marn; volkanik tüfler ve killer ile arataba* kalanmışlardm ! Bu yataklarda kolemanit egemendir, İ fakat diğer bor minerallerinden meyerhof* ferii; uleksîtj tunelitß terujiiß kahnitj hid* roborasii ve bir tür vîgit de bulunmaktadır. Kalsit; jips, sölestifij elementer kükürt realgar ve orpiment borat olmayan ana minerallerdir, Kolemanitin oluşumu prob* lemlidir* Diğer yerlerden elde edilen veriler; kolemanitinß yataklar örtüldükten sonra uleksitin yerini alması veya inyoitin su kaybetmesi (dehidrasyonu) ile oluşabüecegim belirtmektedir. Emet'te bu İM tip oluşum biçimini kesin olarak destekleyici hiçbir arazi verisi bulunamamıştır. Köle - manitin daha sonraki oluşumları^ damar lan ve boşlukları (jeodları) doldurmuş olarak ve kolemanit nodüllerine ipliksi kenarlar olarak bulunmaktadır. Diğer diyajeneiik değişimler, viçit veya hidro - borasit minerallerinin kısmı olarak köle manitin yerini almalarıdır, Kolemanit ayrıştığı mman, genellikle yerini titmmfte kalsit alır. Remrvler boldur^ fakat hem sülfitß hem de borat fazlarmdaki arşen varlığı? cevher hamrlama sıramnda sorunlar yaratabilir.
17-27

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