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Sauksai Nappe

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Journal Article
Published: 01 November 2000
Russ. Geol. Geophys. (2000) 41 (11): 1454–1470.
... (autochthone). Structurally higher there are Paleozoic and Meso-Cenozoic metamorphic rocks detached off the crystalline basement (parautochthone). They are layered into two detached tectonic nappes – lower Kukurt-Dzhilga nappe made up of Silurian-Permian and Lower-Middle Triassic rocks and upper Sauksai...
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Dynamics of the Alpine nappe formation on the southern slope of the Muzkol Range (principal scheme), 1–5 – geological complexes (1 – Proterozoic, 2 – Paleozoic, 3 – Mesozoic, 4 – Paleocene–Eocene, 5 – Oligocene–Miocene); 6 – main decollements; 7 – direction of mass transport on tangential compression; 8 – direction of transfer of c1astics; 9 – contact-metasomatic processes; 10 – syncollisional granitoids. A – Muzkol–Kalaktash trough, B – Muzkol uplift, C – Sauksai – Kukurt–Dzhilga trough. I–IV – paleotectonic profiles (I – Paleocene–Early Eocene, II – Late Eocene–Early Oligocene, III – Late Oligocene–Early Miocene, IV – Late Pliocene–Early Pleistocene). Kk, Cc – parautochthone, gravitational decollement nappes (Kukurt-Dzhilga, Sauksai). M, K + NP, N, S – allochthone, tectonically layered imbricated nappes (Muzkol, Kalaktash + North Pamirs, North Pshart, and South Pshart, respectively).
Published: 01 November 2000
Eocene–Early Oligocene, III – Late Oligocene–Early Miocene, IV – Late Pliocene–Early Pleistocene). Kk, Cc – parautochthone, gravitational decollement nappes (Kukurt-Dzhilga, Sauksai). M, K + NP, N, S – allochthone, tectonically layered imbricated nappes (Muzkol, Kalaktash + North Pamirs, North Pshart
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Imbricated and nappe structures in the Aksai – Saly-Mula interfluve (for location see Fig. 1). Indexation of units follows Fig. 2. Encircled digits indicate the faults (2 – Aksai, 3 – Maldzhuran) limiting the nappes: Sauksai, Muzkol, and North Pshart ones (see Fig. 1). Symbols follow Fig. 4.
Published: 01 November 2000
Fig. 5. Imbricated and nappe structures in the Aksai – Saly-Mula interfluve (for location see Fig. 1 ). Indexation of units follows Fig. 2 . Encircled digits indicate the faults (2 – Aksai, 3 – Maldzhuran) limiting the nappes: Sauksai, Muzkol, and North Pshart ones (see Fig. 1 ). Symbols
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Schematic location of tectonic nappes on the southern slope of the Muzkol Ridge. M – Muzkol Crystalline Massif. Nappes: Kk – Kukurt-Dzhilga, Ss – Sauksai, Mk – Muzkol, NP – North Pamirs, K – Kalaktash, N – North Pshart, S – South Pshart. SEP – nappe-folded structures of the Southeastern Pamirs. Main thrusts (encircled digits): 1 – Muzkol, 2 – Aksai, 3 – Maldzhuran, 4 – Pshart. Dashed outlines – sites shown in Figs. 3–6. For readability, the lettered nappes are additionally hatched.
Published: 01 November 2000
Fig. 1. Schematic location of tectonic nappes on the southern slope of the Muzkol Ridge. M – Muzkol Crystalline Massif. Nappes: Kk – Kukurt-Dzhilga, Ss – Sauksai, Mk – Muzkol, NP – North Pamirs, K – Kalaktash, N – North Pshart, S – South Pshart. SEP – nappe-folded structures of the Southeastern
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Direct and overturned folds in deposits of the Muzkol (T2, T3, P3), North Pshart (K1–2, K2, P1?), and South Pshart (γT3, C?-P1; P3-N1) nappes on the Vostochnyi Pshart headwaters near the Aktash pass. In the north, there is a fragment of brachysyncline represented by Oligocene-Miocene deposits, characterizing the Sauksai decollement nappe. 1 – schists; 2 – siltstones; 3 – sandstones; 4 – conglomerates; 5 – dolomites; 6 – granites; 7 – thrusts, 8 – overturned eroded and discordant surfaces. Encircled digits: 1 – Apak syncline, 2 – Maldzhuran syncline, 3 – Maldzhuran boundary thrust, 4 – Aksai fault.
Published: 01 November 2000
by Oligocene-Miocene deposits, characterizing the Sauksai decollement nappe. 1 – schists; 2 – siltstones; 3 – sandstones; 4 – conglomerates; 5 – dolomites; 6 – granites; 7 – thrusts, 8 – overturned eroded and discordant surfaces. Encircled digits: 1 – Apak syncline, 2 – Maldzhuran syncline, 3
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Comparative scheme of the sections of Paleozoic and Meso-Cenozoic nappe deposits on the southern slope of the Muzkol Range. 1 – limestones, lumpy and conglomerate-like limestones, marbleized limestones, and marbles; 2 – dolomitized limestones and dolomites, marls, and dolomite marls; 3 – shales and phyllites; 4 – schists and gneisses; 5 – sandstones and silts tones; 6 – quartzites; 7 – tuff sandstones and tuff conglomerates; 8 – conglomerates and gravelstones; 9 – conglomerate breccias; 10 – slates; 11 – lavas, lava breccias, and tuffs of basalts; 12 – lavas, lava breccias, and tuffs of andesite basalts; 13 – lavas and tuffs of dacites and rhyolites; 14 – trachytes; 15 – amphibolites; 16 – eroded surfaces; 17 – discordant surfaces. Encircled digits left of the columns – series, formations, or suites: 1 – Chottukoi, 2 – Belaga, 3 – Dzhar, 4 – Kara-Istyk, 5 – Bekzhol’, 6 – Kyzyl-Kyr, 7 – Zorabat, 8 – Kozyndyi, 9 – Buran, 10 – Tau, 11 – Sary-Kyr, 12 – Atkamar, 13 – Dzhaambai-Kukurt, 14 – Saly-Mula, 15 – Zor-Buguchi, 16 – Kalaktash, 17 – Kichik-Kainda, 18 – Mukur-Kainda, 19 – Zor-Kainda, 20 – Dzhan-Kainda, 21 – Dzhaambai-Chechikta, 22 – Vamar, 23 – Murkala, 24 – Shisharb, 25 – Molo-Kara-Dzhilga, 26 – Kukurt-Dzhilga, 27 – Tanymas- Kudara, 28 – Sarez. Their thickness in meters is given. Right of the columns, there are age indices of stratigraphic subdivisions. Roman digits above the columns stand for the nappes: I – South Pshart, II – North Pshart, III – Kalaktash, IV – North Pamir, V – Muzkol, VI and VII – Sauksai, VIII and IX – Kukurt-Dzhilga. I – West Pshart zone, II–V – South Muzkol zone, VI–IX – North Muzkol zone.
Published: 01 November 2000
Fig. 2. Comparative scheme of the sections of Paleozoic and Meso-Cenozoic nappe deposits on the southern slope of the Muzkol Range. 1 – limestones, lumpy and conglomerate-like limestones, marbleized limestones, and marbles; 2 – dolomitized limestones and dolomites, marls, and dolomite marls
Journal Article
Published: 01 October 2001
Russ. Geol. Geophys. (2001) 42 (10): 1367–1374.
...R. A. Maksumova; A. V. Dzhenchuraeva; A. V. Berezanskii New data on stratigraphy, tectonics, and magmatism of the Tien Shan ancient rocks permit the plate-tectonic interpretation of the structure and evolution of the Tien Shan nappe-folded orogen. A new scheme of tectonic regionalization has been...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 08 February 2021
Lithosphere (2021) 2021 (1): 6697858.
... valleys and tributaries located in the northwest Tajik Pamir (Figure 2 [ 49 ]). Silurian to Devonian sediments are the oldest exposed low-grade metamorphic units in the region [ 34 , 35 , 49 ]. A low-grade metamorphosed ophiolitic sequence described as Carboniferous [ 50 ] is part of a nappe sheet...
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A schematic map of tectonic regionalization of the Tien Shan nappe-folded orogen. Compiled by R. A. Maksumova and A. V. Berezanskii. 1 – BOUNDARIES: a — strotigraphic, b — tectonic; 2 — thrusts; 3 — strike-slip faults; 4 — sutures (a), the same, beneath the MZ+KZ cover (b); 5 — scrpcntinitcs. MASTER FAULTS: I — the most important structural line of Ticn Shan (Nikolacv line) (Late Ordovician suture, Late Hcrcynian strike-slip fault, revived in the Alpian time); II — lchkclctau-Aramsu (suture in O2, strike-slip fault in PZ3 and in the Alpian time); III — At-Bashi-lnyl’chck reverse fault, revived in the Alpian time; IV — Talas-Fcrgana, dextral strike-slip fault (origin in PZ3); V — Atoinak-North Kassan(?): VI — Karasu: strike-slip fault in PZ3, thrust (coinciding with suture) in MZ-KZ; VII — Kumbel’ (late-collision reverse thrust); VIII — Uchkcl-Kainda (prcfolded thrust); IX — Ortosu-Borkoldoi (prefolded thrust); X — Kugart thrust contemporaneous with the Talas-Fergana fault; XI — East Alai dextral strike-slip fault, after thrust; XII — Savoyard prefoldcd thrust, transford into reverse thrust during PZ3; XIII — Zcravshan (suture crushed by Alpian thrusts in the Alpian time); XIV — Vakhsh (Alpian thrust); XV — North Pamir (Aipian thrust); XVI — South At-Bashi (post-thrust reverse fault); XVII — Kan (early-collisional(?) Late Palcozoic thrust); XVIII — Tegermach (prefolded Hercynian thrust); XIX — Karavshin (synfoldcd thrust transformed into north-vergent reverse thrust in the Alpian time); XX — Turkestan (synfolded thrust transformed into north-vergent reverse thrust in the Alpian time).
Published: 01 October 2001
A schematic map of tectonic regionalization of the Tien Shan nappe-folded orogen. Compiled by R. A. Maksumova and A. V. Berezanskii. 1 – BOUNDARIES : a — strotigraphic, b — tectonic; 2 — thrusts; 3 — strike-slip faults; 4 — sutures ( a ), the same, beneath the MZ+KZ cover ( b ); 5