Yazar "Russell, Michael" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Rare Earth Element Content of Cryptocrystalline Magnesites of Konya, Turkey
    (AMER INST PHYSICS, 2016) Zedef, Veysel; Russell, Michael
    We examined the rare earth element content of several cryptocrystalline magnesites as well as hydromagnesite, host rock serpentinites, lake water and hot spring water from Turkey. Southwestern Turkey hosts cryptocrystalline magnesites, sedimentary magnesites with presently forming, biologically mediated hydromagnesites and travertines. Our results show the REE content of the minerals, rocks and waters are well below detection limits. One hydromagnesite sample from Lake Salda has slightly high La (2.38ppb), Ce (3.91 ppb) and Nd (1.68 ppb) when compared to other samples, but these are also still below detection limits of the method we followed.
  • Küçük Resim Yok
    Öğe
    Some Characteristics of Hirsizdere Sedimentary Magnesite Deposits, Denizli, SW Turkey
    (AMER INST PHYSICS, 2016) Zedef, Veysel; Russell, Michael
    Approximately 8 % of Turkey is covered by ultramafic rocks which host economically important deposits of magnesite, chromite and olivine. Magnesite deposits are of three types: (1) Massive or crystalline, (2) Cryptocrystalline and (3) Sedimentary. Cryptocrystalline and sedimentary type magnesite deposits are widespread all over Turkey although the massive type deposits are seemingly absent. In this study, we examined the sedimentary magnesite deposits of Hirsizdere, located in the province of Denizli, SW Turkey. The deposits formed as five beds within an ultramafic environment. The thickness of the magnesite beds can reach up to 4 meters and may be traced up to 3 km from west to east. The deposit comprises half a million tons of magnesite with some associated dolomite.