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DOI: h ps://10.5281/zenodo.17308259
GEOLOGICAL AND MINERALOGICAL SUBSTANTIATION OF THE
KHODJADIK AREA
Pаnjiyе Hikmа Аhаdillаyе ich
Teache
Ka shi S a e Technical Uni e si y,
Ka shi, Uzbekis an,
E-mail: hikmа .pаnjiyе 02@mаil. u
Musallamo Zuh iddin Xusniddin oʻgʻli
S uden
Ka shi S a e Technical Uni e si y,
Ka shi, Uzbekis an,
E-mail: zuh iddin.musallamo [email protected]
ABSTRACT
The need o elemen s o noble and a e me als is inc easing e e y yea , he e o e,
he de elopmen o c i e ia o he sea ch, explo a ion, and o ecas ing o mine al
deposi s in he coun y, he e ec i e o ganiza ion o geological explo a ion wo k, and
he mode n scien i ic subs an ia ion o ock o ma ion and o e o ma ion a e o
pa amoun impo ance in explo a ion and o ecas ing. The esul s o pe ophysical
s udies, s a ig aphic and geological condi ions o he Rudny deposi se e as he mos
impo an in o ma ion sou ce.
Keywo ds: Khodzhadik, Chakylkalyan, ska n, scheeli e, qua z-se ici e, qua z-
plagioclase and qua z sands ones, qua zi es, mica-ca bon-qua z, ca bon-mica,
hund ed-qua z shale and sands one.
АННОТАЦИЯ
Еже годно растет потребности на элементы благородные и редкие
металлы, с связи с этим разработки критерии поиски, разведки и
прогнозирование месторождение полезных ископаемы стране, эффективно
организовать геолого-разведочный работ, современно научной обоснование
формирование горных пород и рудообразование, разведка-прогнозировании
является важнее значения. Важнейшие информационно источником служат
результате петрофизический исследование стратиграфический и
геологические условия Рудни месторождение.
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Ключевые слова: Ходжадик, Чакылкалян, скарн, шеелит, кварц-серицит,
кварц-плагиоклаз и кварцевые песчаники, кварциты, слюда-углеродисто-
кварцевый, углеродисто-слюди, сто-кварцевый сланец и песчаник.
INTRODUCTION
The Khodjadik o e deposi belongs o he no he n Chakilkalyan mine alogical
zone (pa o he Za a shan-Aloy megazone), which is cha ac e ized by s uc u es
associa ed wi h he collisional ec onic s age, such as olis os ome complexes and
s ike-slip aul s. The no heas e n egions a e dis inguished by s uc u es including
dike complexes o alkaline basal oids and lamp ophy es. The mine alogical p o ile o
he a ea is de ined by gold- ungs en mine aliza ion.
LITERATURE REVIEW AND METHODS
The Khodjadik o e deposi is loca ed in he no he n sec o o he Chakilkalyan
megablock, which hos s se e al ska n and ska noid- ype o ma ions. Scheeli e
mine aliza ion in he ska ns o he Chakilkalyan moun ains was i s disco e ed in
1945. Since hen, wo k has been ca ied ou o assess he po en ial o known ungs en
si es and iden i y new p ospec i e a eas.
The Khodjadik o e deposi con ibu ed o he de elopmen o ideas ega ding ock
iden i ica ion, s a ig aphic ea u es o he a ea, and he ma e ial composi ion o o es.
In 1967–68, in he no he n pa o he Chakilkalyan megablock, pa icula ly in
he Khodjadik-Kamanga on-Yakh on sec ion, a complex o geological and geophysical
wo ks, including geochemical geodesy, was conduc ed on a 1:10,000 scale (Jizzakh
GGG), co e ing an a ea o 100 km2. This wo k, led by P. F. Yego o and N. Giyaso ,
aimed o iden i y schlich es s, li hogeochemical sea ch o p ima y au eoles,
magne ome y, he VP me hod, and o analyze li hological-s a ig aphic and
geophysical au eoles. Addi ional geological su eys we e conduc ed in 1968, in
collabo a ion wi h o he pa ies. The explo a ion and su ey wo k was ca ied ou by
he Chakilkalyan QRG g oup o he Za a shan expedi ion.
RESULTS
In he Khodjadik o e deposi a ea, Paleozoic and hin Cenozoic ocks wi h
complex s uc u al o ma ions and me amo phosed sedimen a y ocks we e iden i ied.
Ushako V.N. di ided he Paleozoic deposi s in o ou main geological uni s:
olcanogenic- e igenous; olcanogenic- e igenous-ca bona e; ca bona e; and
e igenous-silica-ca bona e sui es.
The O do ician Paleozoic (O2-3) Shakh iomon sui e includes olcanogenic-
e igenous o ma ions. The dis ibu ion o Paleozoic ocks in he Chakilkalyan
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moun ains alls in o h ee ypes: (1) in he sou he n pa o he lowe zone, olcanic
ocks make up o 10-15% o clas ic ocks; (2) in he no he n subzone, e igenous
ocks domina e due o physical and chemical p ocesses; and (3) in he cen al pa ,
e igenous ocks a e ex ensi ely de eloped. These laye s consis o shales, sil s ones,
sands ones, g a eli es, conglome a es, olcanic ocks, and lenses o clayey limes ones.
The ock composi ion ea u es abundan chlo i e o se ici e, while ac u ed o mixed
ypes show inc eased qua z.
In he wes e n egion, ocks consis o g een sands ones and qua z- eldspa hoid
sil s ones ich in qua z and mica. Qua z-se ici e shales occu as laye s. In he eas ,
qua z-plagioclase and sands one qua z a e ound, while plains a e domina ed by
se ici e ocks combining qua z-chlo i e-se ici e shales wi h sil s one laye s. G a eli e,
andesi e po phy y, and hei u s appea as hin laye s. Te igenous ocks a e mic o-
g ained and eined wi h qua z. Sil s one and shale sequences o m o al-shaped laye s
con aining qua z-plagioclase sands ones up o 450 m hick.
Ca boni e ous o ma ions include olcanogenic- e igenous-ca bona e, u -
e igenous-ca bona e, and daci e-lipa i e ocks om he C1 Shing sui e. In he
Sou he n Chakilkalyan Moun ains, u - e igenous-ca bona e ocks a e s a i ied and
ca ego ized in o wo sec ion ypes: (a) domina ed by pu e limes ones wi h hick mixed
sands ones; and (b) u limes ones wi h di e se physical p ope ies. Tu -ash i e bodies
show une en ca bona e dis ibu ion and mixed laye s ha appea as lenses o ibbons.
Qua z g a elly ocks appea in lowe laye s.
These ca bona e ocks exhibi a yellowish-g ay colo due o py i e sul ida ion and
oxida ion. Clayey limes ones appea in daci e-lipa i e a eas as pa o calca eous shales.
The C11 daci e-lipa i e o ma ions o m laye ed sequences, indica ing ancien magma
ac i i y. Volcanic ocks a e o en al e ed o qua zi ized and may esemble
apo olcanogenic ocks. These o ma ions include qua z and daci e po phy ies, hei
u s, and mino andesi es. Te igenous ocks coexis , o en s a i ied and chlo i ized.
The olcanogenic- e igenous-ca bona e ocks con ain ca bona e- e igenous-
u ogenic bodies loca ed in au eoles. O do ician O2-3 olcanogenic-sedimen a y
s uc u es lie below Lowe Silu ian dolomi es. These ocks a y in colo and ex u e.
In he Khodjadik-Yak on-Okbayjuman ungs en a ea, he ca bona e- e igenous-
u aceous laye is di e se and non- ypical o he Chakilkalyan Moun ains. G een
shales and amphiboli es domina e, wi h al e na ing shales, u s, and g a eli es.
Thickness a ies om 20–30 m o 150 m. In he eas , he laye s ansi ion om
e igenous- olcanogenic o ca bona e s uc u es.
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Tu -aluminosilica e ocks appea as hin len icula limes one-al e na ing laye s.
Mine al con en in u ocks dec eases in he Shing sui e, while dolomi es o m in
adjacen ca bona e laye s. O e zones con ain hyoli e u s, agmen ed sand-clay
laye s, and shales composed o se ici e-qua z, eldspa -se ici e-qua z, and chlo i e-
se ici e-qua z. The ca bona e- e igenous- u laye is 100 m hick in he no hwes
and 20–50 m in he sou heas .
Ca bona e and u ock genesis is in e ed om mine alogically simila
olcanogenic ocks benea h and abo e limes ones. Lowe Wenlock Fo ma ion
limes ones in he Chakilkalyan Moun ains con ain s oma opo es, co als, and
b achiopods. In Kamanga on, he o ma ion includes u -clayey limes ones, alkaline
u s, and dolomi es wi h scheeli e mine aliza ion, showing pink colo om oxidized
py i e. Thickness anges om 50–100 m.
In he Yakh on deposi , he o ma ion includes ligh and da k g ay, yellowish-g ay
ine-g ained limes ones. Te igenous and e usi e- e igenous deposi s o m laye s o
10–30 cm. Ca bona e analysis shows 5.6–16.4% dolomi e. The len icula laye s
con ain sands ones, shales, and olcanic ocks. Ka a ish laye s (1–5 mm hick) add
mic o ex u e. E usi e-sedimen a y ocks a e me amo phosed and s uc u ally al e ed.
Laye hickness is 20–100 m.
The eas e n Chakilkalyan megablock hos s ungs en mine aliza ion in magma ic
clayey- u ogenic limes ones wi h alkaline e usi es up o 250 m hick. These ocks
a e pink-b own due o oxidized py i e. Dis ibu ion halos con ain qua z- eldspa -
diopside and po assium-silica e mine als.
The C1-2–D1 ca bona e o ma ion is di ided in o h ee pa s, isible in e ical
sec ions. The dolomi e o ma ion (Ku u ak) in zone C1-2 includes clayey and po ous
dolomi es (5–25 m hick), o e lain by massi e bi uminous dolomi es. These da k g ay
dolomi es a e low in o ganic ma e . The o ma ion includes laye ed dolomi es om
g ay o ligh g ay, wi h inc eased silica e con en and emoli e in me amo phic zones.
The uppe laye s consis o banded da k and g ay dolomi es wi h dolomi ic limes one.
Thickness anges om 300–500 m.
The C2 Kop uk limes one-dolomi e o ma ion is hinne in he no he n
Chakilkalyan sec ion (25–50 m) and has highe silica con en . I includes dolomi ic
limes ones, une en g ay limes ones, and deco a i e len icula -nodula dolomi ic
laye s. Abo e, banded dolomi ized limes ones include dolomi e lenses (up o 5 m).
C2 limes one-dolomi e ocks appea in hin s ips wi h len icula and s ia ed
ex u es. No sha p bounda ies exis . Bi uminous dolomi ic limes ones con ain o ganic
ma e . Componen s a y, including eddish o b own e igenous ma e ial and
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siliceous conc e ions. Con ac me amo phism causes s ong ec ys alliza ion.
Dolomi ic limes ones lie consis en ly wi h limes one ocks. To al laye hickness: 250
m.
In he D1 Madmon sui e, limes ones a e massi e, hinly s ia ed, and g ay.
Con ac s a e indis inc due o ca bonaceous a ia ion. Aphani ic ypes domina e, wi h
a e chalcedony and dend i ic o ms. These deposi s a e hicke in he sou he n
Chakilkalyan a ea. The cen al pa con ains shale, clay-ca bona e, and lens o ma ions.
Rocks a e ma bled by con ac me amo phism. Thickness eaches 450 m.
In he D1-2 Khojako gon sui e, e igenous-siliceous-ca bona e ocks show bo h
con o mi y and s a ig aphic uncon o mi ies. The egion’s ec onics ea u e shea
mo emen . Mos o ma ions a e Middle De onian, bu he sou he n subzone includes
Lowe De onian deposi s.
The o ma ion consis s o da k g ay limes one wi h len icula and g anula
inclusions. Clayey shales a e in e bedded. Siliceous and shale componen s usually
o m a ew pe cen bu may ise o 40–50% in sec ions. The ed hue o e igenous
ma e ials is no able. Limes ones a e o en dolomi ized wi h agmen al componen s.
Massi e limes ones some imes esemble pu e limes one. In con ac zones, ocks a e
apidly ma bled. Thickness eaches 500 m.
Cenozoic deposi s a e widesp ead in lowland a eas, pa icula ly in he Ulus-Jam
dep ession, no he n oo hills, and Kashkada ya basin. Paleogene, Neogene, and
Qua e na y o ma ions a e iden i ied.
Qua e na y deposi s (Q) occu along moun ain slopes, wa e bodies, and alleys.
They consis o conglome a es, loess, loess-like and clayey soils, g a el, and c ushed
s one. In moun ains, hickness is 30–50 m; in oo hills, o e 100 m.
CONCLUSION
Labo a o y analyses conduc ed include chemical analysis (714 samples), spec al
analysis (1,611 samples), mass spec ome y (ISP) (65 samples), and gold analysis (320
samples).
The Khodjadik o e deposi ea u es olded s uc u es o med by ec onic
comp ession, associa ed wi h ungs en mine aliza ion and s eep dips. Tungs en o e
bodies consis o py oxene-chalcopy i e-qua z, py oxene-amphibole-chalcopy i e-
qua z, and amphibole-chalcopy i e-qua z ska ns. Scheeli e, he main ungs en
mine al, occu s in h ee gene a ions, wi h py ho i e as he p ima y sul ide. Py i e and
chalcopy i e a e p esen in smalle amoun s. To al sul ide con en in o es does no
exceed 2–4%.
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