GOBI ALTAI TERRANE. VSC. Ar resetting. IE. ME. Czech Geological Survey. Klárov 3, 118 21 Prague 1, Czech Republic www.geology.cz. Tugrug Fm.
oS
78
o 60
45°27'N
o
52
¹ fQ
50
56 54
¹
nCss Go l
62
S
sa i
¹
o
52 69
g Sa
Observed fault
26
Inferred fault
27
Contact metamorphic aureole
7
¹
sEOtg
Calcareous metasandstones with layers of slates
10
wEOtg
Metasiltstones, metagreywackes with layers of metarhyolites, metabasalts and associated metatuffs
11
gfEOtg
Sericite quartzitic phyllite with intercalations of quartzites and chlorite-sericite phyllites
12
bEOtg
Slightly metamorphosed volcaniclastic rocks, greenschists and metabasalts, sericite-chlorite phyllites
HT/HP
¹
gCss
r Sha
25
¹
444
S
75
¹62
o
Â
¹S
72
¹
¹S
gce
80
Mg tg
S
¹
S
gCss
Aco
fGce
gCss
S
¹85
45°21'N
¹S
fQ
!
45°20'N
limestone, marl
basalt
gabbro
volcanosedimentary complex
IE
igneous event
low temperature
HT
high temperature
LP
low pressure
HP
high pressure
96° E
102° E
¹80
¹80
96°21'E
1
M-45
M-46
M-47
¹ Aco
½
0
Mco
t
1
Aco
tG co
co
tG co
371
96°24'E
2
4
96°27'E
96°30'E
CGS project No. 321570, MEYS Project No. LK 11202, GACR Project No. P210/12/2205 Gauss conformal transverse cylindrical projection Krassovsky ellipsoid, Kronstadt datum Topographic base derived from GPS data and SRTM30 © Journal of Maps, 2017
3 km
1 : 160,000
GEOLOGICAL CROSS SECTION 1–2
108° E
114° E
M-49
M-48
120° E
3000
1
2 3000m a. s. l.
the Sagsai River Break of the cross section
M-50
2600
rD
2200 Mg tg
48° N
L-49
L-48
cGce
1000
44° N
wEOtg
2200 1800
fGce
1400
L-50
wEOtg
Mg tg
1800 !
L-47
Mco
1 : 50,000
Ulaanbaatar
L-46
65
Interval of the countours 25 m
2600
48° N
Topographic contour with step of 25 m
tG co
¹72380 80 ¹75 G
MAP SHEET INDEX 90° E
42
Summit
fQ
¹
96°18'E
Pavel Hanžl1, Zuzana Krejčí1, eds. (2016): Geology of the Gobi Altai and Tseel Terranes in the Central Part of the Sagsai River Watershed, SE Mongolian Altai Compiled with contribution of: Battushig Altanbataar2, Ondrej Lexa3, David Buriánek1, Vojtěch Janoušek1, Karel Schulmann1, Yingde Jiang4 and Kristýna Hrdličková1 1Czech Geological Survey, Prague; 2Institute of Palaentology and Geology of Mongolian Academy of Science, Ulaanbaatar; 3Institute of Petrology and Structural Geology, Charles University, Prague; 4Guangzhou Institute of Geochemistry, Guangzhou
metamorphic event
ME
LT
1
A
S
¹
mr ce
390 96°15'E
River
30
¦75
Aco
fce
cGce
S
monzonite
40
¦72
80
¹
basic to intermediate tuff and lava
Intermittent creek
82
gCss
S
S
gCss
¹
quartzite
39
32
cQ
71 oS oS
¹
tonalite
Road
45°21'N
320
80
fQ
rhyolite tuff
38
41
Chlorite-sericite to sericite phyllites
Aproximate value od radiometric dating (Ma)
¹ ¹
75 ¹
Mco
¹S
CAMBRIAN
fGce
granite
shale, siltstone
fce
390
75
¹
rhyolite
Fine-grained tabular orthogneiss with layers of biotite gneisses, micaschists and amphibolites
Structural trends S01, S1, S2 (in geological crossections only)
POSITION OF THE REFERENCE POINTS (Landsat 8, band combination 752)
42
78
greywacke, sandstone
fGce
Geological cross section
cQ
50
70
16
4 3
wEOtg
mr ce
541
Coarse-grained augen orthogneiss
Placer
wEOtg
nCss
gCss
¹60 eQ
37
Magmatic foliation
75
¹S 80 68
fce
cGce
17
5
36
Garnet-bearing sillimanite-biotite gneiss, locally migmatitized
ORDOVICIAN–SILURIAN gfEOtg
85
57
485
Fine-grained garnet-bearing biotite gneiss with intercalations of metavolcanic rocks
15
wEOtg
r Sa y
34
43
¦
fGce
ORDOVICIAN
45°24'N
307
73
¹52
fQ
25
Fold axis
35
S
S
33
Metamorphic foliation
45°20'N
LT/HP
¦ ¹
45°24'N
SILURIAN
¹55
gCss
82
80
80
Â
52
76
¹
Â
fQ
Lineation
Cleavage
57
30
Tseel Metamorphic Complex DEVONIAN
85
S
Bedding
75
29
Tseel Terrane
cQ
¹
gCss
fGce
Mg tg
32
25
¹
LT/LP
¹S
Mg tg
Mg tg
70
¹S Â
nCss
393
416
14
nCss 80 309
gtg
31
o ¦ ¹ Â
28
aEOtg
13
311
¹
DEVONIAN
¹S
72
gce
Rhyolite, dacite and associated tuffs
Slates, calcareous shales, layers of siltstones, rare quartzites and impure limestones
S bEOtg
73
wEOtg
rD
Undifferentiated metamorpic rocks
gCss
VSC
25
48
gCss
fQ
Observed boundary of units and rocks
Gabbro, diorite, syenite and monzonite with mingling textures
43
fQ
23
nCss
9
¦o ¹
Mg tg
¹S
68
Aco
6
8
88
22
Amphibole-biotite migmatite, migmatitized amphibolite with granite and orthogneiss sills Amphibolite, migmatitized amphibolite and gneiss, gabbro-amphibolite, with granite and orthogneiss sills
Lithological and petrological transitions
Tugrug Fm. CAMBRIAN–ORDOVICIAN
gCss
Mco
24
322
!
Dark grey siltstones and greywackes with conglomerate layers (turbidite)
21
Biotite granite
wEOtg
gCss
ORDOVICIAN–SILURIAN
Undifferentiated volcanic rocks DEVONIAN
86 88
Tonalitic orthogneiss with layers of amphibolites, migmatites and biotite orthogneisses
tG co
gCss
80
o
nd Sha Argiliin
gCss
wCzo
Fine-grained biotite gneiss with layers of greenschists, amphibolites, metarhyolites and orthogneisses
!
¹
S
S
¹S
S
¹S Go l
45°27'N
HT/LP
rD
cQ
gce
Light grey fine-grained metarhyolite
5
o
¹
¹S
TRIASSIC
S
o
o 57
359
¹78
¦
Ar resetting
wEOtg
wEOtg
40
34
¹
Ar resetting
80
bEOtg
61
o ¦
PERMIAN
rD
¹ ¹
CARBONIFEROUS
A
19
20
Sagsai Pluton CARBONIFEROUS
S 87 86
gce
83
383
88
4
wEOtg
bEOtg
¹
299
323
¹ ¹S
¹S 65
cQ
S
¹S 61
wEOtg
Colluvial sediments: silty sands and gravels
S
wEOtg
cQ
mr ce
Tsogt Metamorphic complex DEVONIAN
Zalaa-Oroin Fm. CARBONIFEROUS
2553
¹90
3
rD
cQ
Khuren Undur
bEOtg
¹
72
Eolian sediments: fine-grained sands and silts
18
Gobi Altai Terrane PALAEOZOIC
35
cQ
70 S 38
¦
271
bEOtg
eQ
wEOtg
2
77
2
¦
73 o ¹
¹80 76 o
¹S 44
rD 380
5
51
260
¹
42
5
244
rD
¹¦50 ¹S 76 32
53
wEOtg
49
o¹73
51
Fluvial sediments: sands to gravels with boulders
S
5
aEOtg
60 wEOtg
fQ
bEOtg
cQ
sEOtg
¹
56
3
251
45°30'N
45°30'N
87 63
¹
ME
¹S
IE
o
VSC
¹
ME
¹
1
sEOtg
83 78 65
40
QUATERNARY
wEOtg
S
IE
aEOtg
A
70
Cenozoic Cover CENOZOIC
96°30'E
gtg
fQ
wCzo
TSEEL TERRANE
Zalaa Khayrkhan 2701
¹S
VSC
96°27'E
sEOtg
75
GOBI ALTAI TERRANE
229
96°24'E fQ
gtg
199
96°21'E
Map sheet: L-47-85-G
S
RV
96°18'E
¦
C
1919
EOLOGICAL SU
96°15'E
Czech Geological Survey Klárov 3, 118 21 Prague 1, Czech Republic www.geology.cz
¹
CZE
HG
EY
GEOLOGY OF THE GOBI ALTAI AND TSEEL TERRANES IN THE CENTRAL PART OF THE SAGSAI RIVER WATERSHED, SE MONGOLIAN ALTAI Compiled by: Pavel Hanžl and Zuzana Krejčí
1400
nCss
fce
wEOtg
mr ce
1000
bEOtg
44° N
600
K-47
90° E
96° E
L-47-73-A
K-49
K-48 102° E
200
108° E
L-47-73-B
L-47-74-A
L-47-73-G
L-47-74-V
200
114° E
GEOLOGICAL CROSS SECTION 3–4
L-47-74-B
2400
L-47-73-V
600 wEOtg
L-47-74-G
the Sagsai River
3
2400m a. s. l. wCzo
wEOtg
2000
L-47-85-B
L-47-86-A
1600
L-47-86-B
1200 800
L-47-85-V
L-47-85-G
L-47-86-V
bEOtg
Mg tg
Mg tg
Mg tg
Mg tg
gCss
L-47-XIX L-47-85-A
4
L-47-86-G
400
gtg
wEOtg
Mco wEOtg
2000
tG co
1600
Mg tg
Mco
nCss Aco
Mco
1200 800
tG co
400
