Central
Asia
(Uzbekistan,
Kirgystan, Tadzikistan)
This
is a comprehensive list of alkaline localities in the central asian
states, mostly, but not only (don´t underestimate me !), taken
from the Woolley book (see below), generously given to me for 3
months by Peter G.Seroka - many thanks ! Btw - the information
not from the book is from P.G.Seroka himself. The mineral lists are
certainly incomplete.
- Uzbekistan:
- Tozbulak: 52km²,
diorites, granodiorite, peralkaline and nepheline syenites,
tourmalinized granite, nepheline syentie pegmatites, peralkaline
aplites.
- Kirgystan:
- Kolbashinskii
(=Karabalty-Kol´bashi): Volcanic field of 45x5km.
Basaltoids, alkaine trachytes, tuffs of peralkaline trachyte.
- Tqkailushu (=Bulak-Ashu):
17km². Syenites, porphyry, monzonites, shonkinites, pegmatite
dykes. Aegirine, aegirine-augite, augite.
- Sandyk (=Chechekty):
80km² massif. Subalkaline and alkaline rocks - monzonites,
syenites, nepheline syenites. Apatite grp., augite, biotite,
diopside, feldspar grp., ferrohastingsite, hornblende, magnetite,
nepheline, orthoclase, plagioclase, quartz, thorianite, titanite,
zircon.
- Kyzyl-Ompul (=Ortotokoiskii):
350km². 3 phases, only the first is alkaline. Pulaskites,
syenites, nepheline syenites. Amphibole grp., andesine, apatite
grp., barkevikite, biotite, diopside, fluorite, magnetite,
nepheline, olivine, orthoclase, pyrite, quartz, titanite, zircon.
- Chonashu (=Irtashskii):
10x3km. Gabbros, diorites, pyroxenites, alkaline and nepheline
syenites. Actinolite, albite, apatite grp., biotite, cancrinite,
catapleiite, corundum, fluorite, garbet grp., microcline, nepheline,
sodalite, zircon.
- Shamatorskii: 80km².
Clinopyroxenite, essexite, monzonite, nepheline syenite, aplite and
pegmatite dykes.
- Kokdzharskii: Dyke field.
Limburgites, camptonites, monchiquites, analcime basaltoids.
- Kaichinskii: 20km2.
Melteigite, ijolite, syenites, peralkaline syenites, tourmaline
granites, dykes of alkaline and nepheline syenites, pegmatites,
carbonatites. Aegirine-augite, nepheline.
- Ailagir: Aegirine-augite
syenites.
- Sarisai: Nepheline and
aegirine-augite syenites.
- Surtekin: 20km².
Monzonite, shonkinite, essexite, peralkaline and nepheline syenite,
quartz syenite, dykes of pegmatite and tinguaite. Aegirine,
amphibole grp., biotite, nepheline, quartz.
- Uzunbulak: 0,8km²
dyke. Cancrinite syenite with pegmatites.
- Karaganskii: 6km2.
Nepheline and alkaline syenites. Albite, anatase, apatite grp.,
cancrinite, garnet grp., magnetite, monazite, nepheline, sodalite,
zircon, „tantalo-niobates“, sulfide mineralization (Pb,
Zn, As, Mo).
- Saliepskii: 4km²
stock. Monzonites, peralkaline syenites.
- Sokhskii (=Zardalek):
100km². Nepheline syenites, garnet syenites, monzonites.
Andesine, andradite, apatite grp., biotite, fluorite, grossular,
hornblende, magnetite, microcline, nepheline, phlogopite,
plagioclase, titanite, zircon.
- Surmetashskii: Elliptical
ring. Alkaline and nepheline syenites and tourmaline granites.
Nepheline, olivine.
- Chekindy: Monzonites,
syenites,nepheline syenites. Augite, diopside, garnet grp., hauyen,
nepheline, sodalite.
- Kichikalaiskii West:
Syenites, shonkinites. Aegirine-augite.
- Isfairamskii: 20km².
Syenites, granosyenites, quartz diorites, monzonites, nepheline
syenites. Amphibole grp., biotite, pyroxene grp.
- Dgamandgar: 0,2km².
Nepheline syenties.
- Skalystyi: 54km²
ring structure. Nepheline syenties in the centre, in the periphery
peralkaline and quartz syenites.
- Matchinskii: 30km².
Syenites, nepheline syenites, pyroxenites, granites, carbonatites.
Aegirine-augite, albite, biotite, nepheline, quartz, tourmaline.
- Aikel: 14km2. Monzonites,
syenodiorites, syenites, dykes of nepheline syenite and pegmatite.
- Names only:Irisu, Kaindy,
Paigorodskii, Sardalek, Urusai, Chonashu
- Tadzikistan: Dara-i-Pioz
see own page
- Utren: 40km².
Syenites, nepheline syenites. Amphibole grp., biotite, nepheline,
pyroxene grp, tourmaline.
- Matchinskii South: 20km².
Alkaline and nepheline syenites, peralkaline granites.
- Tutekskii: 23km²
stock. Syenites, nepheline syenites, py<roxenites., pegmatite
dykes.
- Kulpslii: Syenites,
nepheline syenites, toumaline granites. Albite, amphibole grp.,
biotite, cancrinite, nepheline, pyroxene grp., quartz, sodalite,
tourmaline.
- Khodzhaachkan: 50km².
Monzonites, syenites, nepheline syenites, shonkinite. Aegirine,
aegirine-augite, albite, amphibole grp., astrophyllite, baratovite,
biotite, calcite, cancrinite, miserite, nepheline, tourmaline,
wollastonite.
- Dzhilisu: Syenites,
nepheline syenites, dykes of aplite and pegmatites. Albite,
nepheline. Astrophyllite.
- Nedostupnyi: 8km².
Diorite and nepheline syenite. Apatite grp., biotite, hornblende,
nepheline, titanite.
- Yarkhich: 50km².
Peralkaline and nepheline syenites, stocks and dykes of granite and
syenite aplite. Aegirine, albite, allanite, amphibole grp., apatite
grp., lepidomelane, magnetite, microcline, nepheline, oligoclase,
titanite, zircon.
- Turpi: 16km2. Alkaline
syenites, foyaites, pegmatites. Aegirine, albite, biotite, calcite,
cancrinite, fluorite, hastingsite, nepheline, quartz, sodalite.
- Pamir Pipes - Northern:
15km chain. Tuffs, breccias, syenites, phonolite. Pyroxene grp.,
sanidine.
- Pamir Pipes - Southern:
Alkaline syenites, fergusite.
- Pamir Dykes - Northern Belt:
20 dykes over 120km. Alkaline syenites, porphyries, tinguaite.
- Pamir Dykes- Southern Belt:
25km chain. Tinguaite, syenites, bostonite.
- Dunkeldykskii: 2.5x1km.
Syenites, fergusite, alkaline syenites, porphyries.
- Seravsan: Nepheline
syenite. Nepheline, sodalite.
- &Suggested
reading:
- Kogarko,L.N., V.A.Kononova,
M.P.Orlova, A.R.Woolley: Alkaline Rocks and Carbonatites of the
World. Part 2: Former USSR. Chapman and Hall, London, 1995.
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