Baikal
This
is a comprehensive list of alkaline localities in the Baikal area,
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 - most of the information
not from the book is from P.G.Seroka himself. The mineral lists are
certainly incomplete.
Burpala
(North Baikal) see own page
- North Baikal:
- Khorob: Peralkaline
syenites.
- Gilindra: 35km²
stock. Akerites, peralkaline syenites, granodiorites, adamellites.
Aegirine, albite, andesine, andradite, apatite grp., diopside,
hornblende, microcline, oligoclase, titanite, zircon.
- Ovsak: Akerite,
peralkaline syenites.
- Monyukan: 2km²,
peralkaline syenites.
- Synnyr: 564km².
Pulaskites in the centre, pseudoleucite, nepheline syenites around.
Aegirine, aegirine-augite, andalusite, apatite grp., baddeleyite,
biotite, calcite, cancrinite, corundum, dolomite, epidote,
eudialyte, forsterite, hedenbergite, hornblende, kalsilite, kyanite,
magnetite, melanite, nepheline, orthoclase, perovskite, phlogopite,
rutile, sanidine, spinel, staurolite, titanite, vesuvianite,
wollastonite, zircon.
- Yaksha: 100km².
Alkaline syenites, nepheline syenites, foyaites. Albite, amphibole
grp., apatite grp., biotite, garnet grp., kalsilite, magnetite,
nepheline, orthoclase, quartz, titanite, zircon.
- Akitskii: 4.5km².
Peralkaline syenites and granites, nepheline syenite. Aegirine,
aegirine-augite, albite, amphibole grp., ankerite, apatite grp.,
arfvedsonite, barite, biotite, calcite, cancrinite, cerussite,
fluorite, hematite, ilmenite, microcline, nepheline, parisite,
pyrite, quartz, schorlomite, smithsonite, tainiolite, titanite,
xenotime, zinnwaldite, zircon, REE-fluorine-carbonate minerals“.
- Goudzhekitskii and Gorbylak:
Nepheline syenites, melteigite. Albite, analcime, apatite grp.,
biotite, calcite, cancrinite, epidote, ilmenite, microcline,
muscovite, nepheline, schorlomite, titanite.
- Names only: Bryzgunskii,
Kudushkitskii,
- Central Baikal:
- Svyatonosskii: 230km².
Alkali syenites, biotite granites. Aegirine, almandine, andradite,
biotite, feldspar grp., plagioclase, quartz, salite.
- Tazheranskii: Peralkaline
and nepheline syenites, granite pegmatites, pyroxenites, ijolites.
Aegirine, aegirine-augite, albite, augite, biotite, hastingsite,
microcline, nepheline, oligoclase.
- Slyudyanka:
Gabbro-anorthosite, essexite, shonkinite, pyroxenite, syenite-dykes.
Apatite grp., diopside, phlogopite.
- Vitim:
- Angidzhan: Nepheline
syenites. Aegirine-augite, apatite grp., biotite, clinopyroxene,
diopside, feldspar grp., hornblende, ilmenite, muscovite, nepheline.
- Bambuiskii: Diorites,
shonkinbites, essexites, alkaline and nepheline syenites. Aegirine,
aegirine-augite, albite, apatite grp., biotite, calcite, diopside,
fluorite, garnet grp., hastingsite, magnetite, microcline,
nepheline, plagioclase, titanite, zircon.
- Tsipinskii: 5km².
Nepheline syenites, pegmatites. Albite, apatite grp., cancrinite,
epidote, fluorite, lepidomelane, microcline, nepheline, zircon.
- Pravo-Uliglinskii:
Peralkaline granites, peralkaline syenites. Aegirine, feldspar grp.,
hastingsite, plagioclase.
- Verkhne-Uliglinskii:
Stocks, dykes and bodies. Nepheline and peralkaline syenites.
- Okunenvskii (=Kapylyushy):
Nepheleine syenites, syenites. Apatite grp., biotite, cancrinite,
chlorite grp., fluorite, magnetite, microcline, nepheline,
plagioclase, pyrite, zircon.
- 7.5x3.2km. Peralkaline and
nepheline syenites. Aegirine, aegirine-augite, apatite grp.,
corundum, fluorite, garnet grp., microcline, nepheline, plagioclase,
rutile, titanite.
- Snezhninskii: 3x6km.
Peralkaline and nepheline syenites, ijolite, melteigite, pegmatites.
- Saizhekonskii: 1.5x2.5km.
Peralkaline syenite, juvite, urtite.
- Saizhenskii: 4x5km.
Pyroxenites, gabbros, ijolite, theralite, nepheline syenite,
pegmatites. Aegirine, albite, augite, calcite, cancrinite,
hastingsite, lepidomelane, nepheline.
- Amalat: 1x1.5km.
Nepheline syenites, urtite, jacupirangite.
- Gulkhenskii: Pyroxenites,
gabbros, urtite, jacupirangite. Andesine, apatite grp., augite,
biotite, calcite, fassaite, garnet grp., hornblende, hypersthene,
labradorite, nepheline, olivine.
- Nizhne-Burul´zaiskii:
Gabbros, pyroxenites, urtite, pacupirangite, nepeline syenite veins.
Aegirine-augite, apatite grp., biotite, calcite, clinopyroxene,
garnet grp., hastingsite, hornblende, magnetite, nepheline,
oligoclase, orthoclase, zeolite grp..
- Verkhne-Burul-zaiskii:
2.7x7km. Syenites, nepheline syenites, juvite, urtite, ijolite,
melteigite. Aegirine-augite, apatite grp., arfvedsonite, biotite,
calcite, cancrinite, granet grp., hastingsite, magnetite, nepheline,
riebeckite, titanite, zeolite grp..
- Ipoloktinskii: Urtite,
ijolite, melteigite, theralite, nepheline syenite. Calcite,
cancrinite, clinpyroxene, garnet grp., hastingsite, microcline,
nepheline, plagioclase, scapolite.
- Siriktinskii: Peralkaline
and nepheline syenites, ijolite, urtite, pegmatites. Aegirine,
biotite, nepheline, quartz, riebeckite.
- Mukhalskii: Urtite,
ijolite, melteigite, juvite, nepheline syenite a.o.. Amphibole grp.,
calcite, clinopyroxene, garnet grp., nepheline, titanite.
- Sherbakhtinskii: 210km².
Peralkaline and subalkaline syenites, peralkaline granites,
pegmatites.
- Ingurskii: 140km².
Peralkaline granites, pegmatites. Aegirine, feldspar grp., quartz,
riebeckite.
- Zimov´echinskii:
Hastingsite syenites, nepheline syenite. Aegirine-augite, albite,
andradite, apatite grp., biotite, calcite, cancrinite, grossular,
hastingsite, microcline, nepheline, titanite, zeolite grp., zircon.
- Vitim Volcanic Field:
Alkali basalts, bassanite.
- Tuchinskii: 2.3x0.7km.
Nepheline and other syenites.
- Altanskii: Nepheline and
aegirine-augite syenites.
- South Baikal:
- Tunkinskoe Volcanic Field:
Alkali olivine basalts.
- Bartoiskoe Volcanic Field:
Alkali olivine basalts.
- Borgoiskoe Volcanic Field:
Alkaline basalt lavas. Analcime, augite, biotite, feldspar grp.,
olivine, plagioclase.
- Borgoiskii: 2.6km².
Nepheline syenites, pegmatites. Aegirine, albite, apatite grp.,
biotite, feldspar grp., fluorite, hornblende, lavenite, muscovite,
nepheline, sodalite, titanite.
- Dabkhoriskii: Tinguaite,
nepheline syenite.
- Nizhne-Ichetuiskii:
Bodies of nepheline syenite, pegmatites. Albite, andesine, apatite
grp., biotite, cancrinite, epidote, feldspar grp., fluorite, garnet
grp., nepheline, riebeckite, zoisite.
- Belogorskoe: Bodies of
nepheline syenite in syenite porphyries. Albite, nepheline,
sodalite.
- Ortsekskii: Nepheline
syenite.
- Kharasunskii: Nepheline
syenite.
- Verkhne-Bulykskii:u Nepheline
syenite.
- Botsi (=Enkhorskii):
Nepheline syenite. Aegirine, albite, apatite grp., biotite, feldspar
grp., nepheline, titanite, zircon.
- Zormeniskii:
Albite-microcline-nepheline rocks.
- Sukho-Khobol´skii:
Nepheline syenite, cancrinite syenites.
- Southeast Baikal:
- Komskii: Nepheline
syenites.
- Khorinskii: 650km².
Syenites, quartz syenites, peralkaline granites.
- Sredne-Oninskii: see
Khorinskii
- Bugutuiskii: 30
occurrences of peralkaline granites with rare metals and quartz
syenites. Aegirine, riebeckite.
- Atkhinskii: Trachytic
rocks, peralkaline granites, peralkaline syenites. Aegirine,
amphibole grp., feldspar grp., plagioclase, quartz, riebeckite.
- Kukinskii: 22x10 km.
Alkaline granites, pegmatites.
- Ubukitskii: 150km².
Trachytes, ztachyrhyolites, granites, syenites, quartz syenites,
alkaline syenite, also peralkaline.
- Kharitonovskii: 230km².
Alkaline syenites, alkaline granites, peralkaline and quartz
syenites a.o.. Aegirine, biotite, riebeckite.
- Verkhne-Mangirtusikii:
Peralkaline granites, many pegmatites. Aegirine, allanite, apatite
grp., katophorite, magnetite, perthite, plagioclase, quartz,
titanite, zircon.
- Malo-Kunaleiskii: 120km2.
Peralkaline syenites and quartz syenites. Aegirine, biotite,
diopside, katophorite.
- &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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