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Muth Formation

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Journal Article
Published: 01 November 2005
Geological Magazine (2005) 142 (6): 765–781.
... from the quartzites of the Lower Devonian Muth Formation in the Pin Valley, NW Himalayas. Thin-section analyses show that the deformation bands in the Muth Formation formed early in the diagenetic history before porosity was lost. Deformation mechanisms involved cataclasis, translation, rotation...
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Journal Article
Published: 01 March 2004
Journal of Sedimentary Research (2004) 74 (2): 191–202.
...Erich Draganits; Nora Noffke Abstract Microbially induced sedimentary structures, including spectacular siliciclastic domal stromatolites, up to 80 cm wide and 30 cm high, have been found in coastal quartzites of the Lower Devonian Muth Formation (Pin Valley, NW Himalayas). The microbial structures...
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Journal Article
Journal: PALAIOS
Published: 01 April 2001
PALAIOS (2001) 16 (2): 126–147.
...ERICH DRAGANITS; SIMON J. BRADDY; DEREK E. G. BRIGGS Abstract The recent discovery of abundant trace fossils in the Lower Devonian Muth Formation (Pin Valley, Spiti, northern India) contributes to our understanding of the diversity and distribution of Early Devonian arthropod activities...
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(a) Thin-section photomicrograph of quartzite typical of the Muth Formation without deformation bands. Note compositional and textural maturity of sediment (plain polarized light); sedimentary grain shapes are identifiable by dust and fluid inclusion rims. Truncating and impinging grain boundaries (filled arrow) are indicative of diffusive mass transfer by solution. Note the common intra-granular and trans-granular fluid inclusion trails (open arrows). (b) Thin-section photomicrograph of a deformation band fault (area highlighted by dashed lines) in the quartzites of the Muth Formation running from the upper right to the lower left (crossed polarized light). (c) Detail of a deformation band fault with well-developed cataclasis but absence of any internal foliation. Note the increase of grain size distribution due to refinement of some grains and porosity decrease compared to the undeformed quartzite in (a). (d) Photomicrograph of thin-section of a protocataclasite in the Muth Formation that formed clearly after cementation of the quartzite. Microfaults cross-cut the quartzite displacing aggregates of grains (open arrows) (crossed polarized light).
Published: 01 November 2005
Figure 6. (a) Thin-section photomicrograph of quartzite typical of the Muth Formation without deformation bands. Note compositional and textural maturity of sediment (plain polarized light); sedimentary grain shapes are identifiable by dust and fluid inclusion rims. Truncating and impinging
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Lithostratigraphic sections of the Muth Formation southeast of village Mikkim; their correlation to each other is indicated. FA = facies association. Microbially induced sedimentary structures are found at two levels in FA 1 in section A-A′ and are common in FA 2 in all sections. Note that the occurrence of the trace fossil Taenidium barretti commonly coincides with the occurrence of microbial gas domes in section A-A′ and with the occurrence of microbial gas pits in section D-D′ (Fig. 3).
Published: 01 March 2004
Figure 2 Lithostratigraphic sections of the Muth Formation southeast of village Mikkim; their correlation to each other is indicated. FA = facies association. Microbially induced sedimentary structures are found at two levels in FA 1 in section A-A′ and are common in FA 2 in all sections. Note
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FIGURE 2—Generalized stratigraphic sections of the Muth Formation in the Pin Valley at the type locality and near Mikkim. Four facies associations are distinguished (see text). Note the nearly exclusive occurrence of the arthropod trackways in FA2 in the Mikkim section
Published: 01 April 2001
FIGURE 2 —Generalized stratigraphic sections of the Muth Formation in the Pin Valley at the type locality and near Mikkim. Four facies associations are distinguished (see text). Note the nearly exclusive occurrence of the arthropod trackways in FA2 in the Mikkim section
Journal Article
Published: 01 September 2011
Jour. Geol. Soc. India (2011) 78 (3): 263–270.
...S. K. Parcha; Shivani Pandey Abstract The Muth Formation is one of the most characteristic marker horizon traced throughout the northwestern Himalaya. The present studies were carried out in the Farakah Muth (Pin Valley) section of Spiti Basin. The formation uniformly consists of quartzarenite...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2003
DOI: 10.1144/GSL.SP.2003.216.01.08
EISBN: 9781862394643
... Abstract Cylindrical structures, cross-cutting stratification at right angles, occur in the Muth Formation, representing Lower Devonian barrier island arenites of the North Indian Gondwana coast. These structures are up to 1.5 m in height and 0.8 m in diameter, with an internal structure...
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(1) Microphotographs showing immature quartz grains at the base of Muth Formation. (2) Undulose extinction in quartz grain. (3) Sericite minerals with quartz grain. (4) Alteration around quartz grains at the top of Muth Formation. (5-6) Liquidization structures in the Muth Quartzite. (7-8) Ripple marks.
Published: 01 September 2011
Fig.3. (1) Microphotographs showing immature quartz grains at the base of Muth Formation. (2) Undulose extinction in quartz grain. (3) Sericite minerals with quartz grain. (4) Alteration around quartz grains at the top of Muth Formation. (5-6) Liquidization structures in the Muth
Journal Article
Published: 01 September 1988
Jour. Geol. Soc. India (1988) 32 (3): 227–238.
...O. N. Bhargava; U. K. Bassi Abstract Bifasciculus and Phycodes pedum from the Cambrian Kunzam La Formation; Arthrophycus from the Silurian Takche Formation; arthropod markings and Paleophycus tubularis from the Devonian Muth Formation; Rusophycus and Skolithos from the Po Formation: Laevicyclus...
Journal Article
Published: 01 December 1986
Jour. Geol. Soc. India (1986) 28 (6): 467–472.
...V. J. Gupta Abstract The present paper records Lower Carboniferous conodont fauna from the grey micritic limestone lying immediately above the Muth Formation exposed along the left bank of the Takche nala, between Kunzam La and Losar, Spiti valley, Himachal Pradesh. JOURNAL GEOLOGICAL SOCIETY...
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A) Geological map of the Pin Valley (note the inset for location in NW India) modified from Fuchs (1982), with the position of the investigated Muth Formation sections at the anticline southeast of Mikkim. The thick line indicates the course of section A-A′; arrows point to the location of sections C-C′ and D-D′. B) View to the south to the steep cliffs formed by the Muth Formation at the eastern limb of the anticline near Mikkim; location and course of sections C-C′ and D-D′ are indicated by dashed lines.
Published: 01 March 2004
Figure 1 A) Geological map of the Pin Valley (note the inset for location in NW India) modified from Fuchs (1982) , with the position of the investigated Muth Formation sections at the anticline southeast of Mikkim. The thick line indicates the course of section A-A′; arrows point
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FIGURE 8—Selenichnites isp. (trace 89) on a bedding surface in the uppermost part of the Muth Formation near Muth (Coin diameter 25 mm)
Published: 01 April 2001
FIGURE 8 — Selenichnites isp. (trace 89) on a bedding surface in the uppermost part of the Muth Formation near Muth (Coin diameter 25 mm)
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Photograph of outcrop southeast of Mikkim hosting example of a Himalayan (Tertiary) fault (thick dashed line) displacing bedding (thin dashed lines) in the Muth Formation quartzite. The large fault (F053/84, L330/38) shows several tens of metres of dextral oblique slip indicated by offset of sedimentary beds. Offset resulted in the repetition of parts of the Muth Formation section (E. Draganits, unpub. Ph.D. thesis, Univ. Vienna, 2000). Note that this fault shows much lower weathering resistance compared to the undeformed quartzite, which is in strong contrast to the higher weathering resistance of deformation bands (Fig. 4e).
Published: 01 November 2005
Figure 8. Photograph of outcrop southeast of Mikkim hosting example of a Himalayan (Tertiary) fault (thick dashed line) displacing bedding (thin dashed lines) in the Muth Formation quartzite. The large fault (F053/84, L330/38) shows several tens of metres of dextral oblique slip indicated
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Photograph of outcrop of steeply dipping bedding surface of the Pin Formation perpendicularly cut by sheared joints (arrows) (compare with stereo plot in Fig. 1c). View towards the south to the uppermost bedding surface of the Pin Formation at the type section, south of village Muth. Note the lighter colour of the alteration zone on both sides of the sheared joints, relative to the darker dolomite of the host rock. White rocks in the lower left are quartzites of the overlying Muth Formation. H. P. Schmid for scale.
Published: 01 November 2005
Figure 7. Photograph of outcrop of steeply dipping bedding surface of the Pin Formation perpendicularly cut by sheared joints (arrows) (compare with stereo plot in Fig. 1c ). View towards the south to the uppermost bedding surface of the Pin Formation at the type section, south of village Muth
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FIGURE 1—Geological and outcrop situation in the Pin Valley. (A) Locality map, Pin Valley, Spiti, Northern India. Filled circles indicate trackway localities mentioned in the text. Sections of the Muth Formation, A-A′ near Mikkim and E-E′ near Muth, are indicated. (B) General view from Mikkim towards the southeast to trackway locality 1, at the western termination of the anticline above the Pin River, where most of the trackways were found
Published: 01 April 2001
FIGURE 1 —Geological and outcrop situation in the Pin Valley. (A) Locality map, Pin Valley, Spiti, Northern India. Filled circles indicate trackway localities mentioned in the text. Sections of the Muth Formation, A-A′ near Mikkim and E-E′ near Muth, are indicated. (B) General view from Mikkim
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(a) Geological map of the Pin Valley modified after Fuchs (1982). (b) Stereo plots (equal area projections; lower hemisphere; contours at 3 × and 5× the random distribution) of deformation bands (filled circles) and zones of deformation bands (filled triangles) in the Muth Formation, at locations 1 to 3, southeast of Mikkim. Deformation bands have been rotated to account for Eocene folding. (c) Stereo plots of sheared joints (open circles) in the uppermost part of the Pin Formation at location 4, south of Muth. Faults have been rotated to account for Eocene folding.
Published: 01 November 2005
Figure 1. (a) Geological map of the Pin Valley modified after Fuchs (1982) . (b) Stereo plots (equal area projections; lower hemisphere; contours at 3 × and 5× the random distribution) of deformation bands (filled circles) and zones of deformation bands (filled triangles) in the Muth Formation
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Location map of the studied area, situated within the Tethyan Himalayan lithotectonic zone in the northern Indian Himalaya. The ages of the formations are as follows. Batal Formation: Neoproterozoic; Parahio Formation: Cambrian (Series 2: Miaolingian); Shian Formation: Cambrian (Furongian–Ordovician); Pin Formation: Late Ordovician–early Silurian; Muth Formation: Silurian–Devonian Modified from Myrow et al. (2019).
Published: 22 April 2021
(Furongian–Ordovician); Pin Formation: Late Ordovician–early Silurian; Muth Formation: Silurian–Devonian Modified from Myrow et al. ( 2019 ).
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FIGURE 13—Cluster analyses of ichnoassemblage composition for ten Late Silurian and Devonian ichnoassemblages. See text and Table 1 for details. Distance metric is Euclidean distance (0–1). (A) Epifaunal and Infaunal traces. (B) Epifaunal traces only. Key: Arctic (Arctic Canada), Catskill (Catskill, New York State), Highland Mills (Highland Mills, New York State), Hornelen (Hornelen Basin, Norway), Midland (Midland Valley, Scotland), Muth (Muth Formation, India), Orcadian (Orcadian Basin, Scotland), Ringerike (Ringerike, Norway), Taylor (Taylor Group, Antarctica), Tumblagooda (Tumblagooda Sandstone, Australia)
Published: 01 April 2001
(Catskill, New York State), Highland Mills (Highland Mills, New York State), Hornelen (Hornelen Basin, Norway), Midland (Midland Valley, Scotland), Muth (Muth Formation, India), Orcadian (Orcadian Basin, Scotland), Ringerike (Ringerike, Norway), Taylor (Taylor Group, Antarctica), Tumblagooda (Tumblagooda
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FIGURE 11—Rose diagrams (linear scale) of slip face directions and trackway walking directions in the Muth Formation near Mikkim. (A) Dip directions of restored foresets in facies association 2. (B) Orientation of Diplichnites traces without walking direction. (C) Palmichnium walking directions on bedding surfaces. (D) Palmichnium walking directions on foresets. Note that most of the Palmichnium traces are directed opposite to the dip of the foresets indicating uphill walking directions
Published: 01 April 2001
FIGURE 11 —Rose diagrams (linear scale) of slip face directions and trackway walking directions in the Muth Formation near Mikkim. (A) Dip directions of restored foresets in facies association 2. (B) Orientation of Diplichnites traces without walking direction. (C) Palmichnium walking