Neogene lacustrine sediments of
Northern Konya consist of limestone, clayey limestone, claystone, mudstone,
marl, sandstone and conglomerate. Widely observed limestones are fine grained,
white-beige-cream coloured and contain remnants of the plant root. Brecciation,
calcretion, drying cracks and dissolution voids are also common. Laminates are
widely seen in claystone and sandstone. Ooid, pellet, intraclast and ostracod
are the main components of limestones. Ooids and intraclasts are surrounded by
meniscus type cement which represents a vadoze environment. SEM studies
indicate that hexagonal and rhombic type calcite and dolomite minerals of
meniscus cement are covered by sepiolite and palygorskite clay fibre. XRD
analyses show that sepiolite and palygorskite minerals are associated with
smectite, chlorite, feldspar, illite and quartz minerals. Carbonate units of
Neogene lacustrine of Konya area are alternated and intercalated with
conglomerate, sandstone and mudstone lenses. These indicates that, from time to
time, the lacustrine area is fed by flowing water. Considering the mineral
paragenesis and their textural features of the study area, precipitation was
occured due to continuous changes in climate conditions. Climate conditions
changes the lacustrine water chemistry and thus facilitating precipitation of
carbonate and detrital units. Because of continuous climate changes, sepiolite
and palygorskite were formed as a result of calichification of carbanate units
Birincil Dil | İngilizce |
---|---|
Konular | Mühendislik |
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 1 Ocak 1998 |
Yayımlandığı Sayı | Yıl 1998 Cilt: 120 Sayı: 120 |
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