The Geology of Fluvial Deposits

Miall, Andrew D.

doi:10.1007/978-3-662-03237-4

Cited by 768 publications

(1,289 citation statements)

References 482 publications

(1,267 reference statements)

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“…The grain-size scale and the sedimentary rocks were identified according to the classifications of Udden (1914), Wentworth (1922) and Pettijohn et al (1972), respectively; the roundness of the grains followed the categories of Pettijohn et al (1987); the lithofacies were described following Miall's concept (Miall 1977(Miall , 1978(Miall , 2006.…”

Section: Methodsmentioning

confidence: 99%

“…In the internal structure of beds represent the preferred orientation fabric of clasts and imbrication indicating unidirectional flow. They were deposited by debris flows or pseudoplastic debris flows, in active bedload transport (Miall 2006, Wysocka & Świerczew-ska 2010. 3) The Gig lithofacies identified in the west of the basin belong to the Troi section (Fig.…”

Section: Fig 3 Gravely Lithofacies: A) Sand-and Mud-supported Disormentioning

confidence: 99%

“…The beds are heterogeneous and poorly defined, clast-supported and matrix-supported conglomerates. They could be deposited by a high energy debris flow or in a low energy flow with an inertial bedload transport by laminar to turbulent flow (Miall 2006). However, this case can be interpreted that they also were deposited by the sweeping migration of gravel sheets across the bar tops or by development of a fan lobes (Massari 1983).…”

Section: Fig 3 Gravely Lithofacies: A) Sand-and Mud-supported Disormentioning

confidence: 99%

“…Therefore, this case should be interpreted as infill of minor channels caused by channel system avulsion and leaving of an abandoned channel. Some examples of Gt lithofacies also represent migration of transverse bed forms with curved crests, while others represent filling of minor channels (Miall 2006). 5) The Gp lithofacies are bodies of clast-supported or sand matrix-supported conglomerates (Figs 3E, F, 7A, B).…”

Section: Fig 3 Gravely Lithofacies: A) Sand-and Mud-supported Disormentioning

confidence: 99%

“…In turn, they rest on an erosion-surface, which developed on sandy bed. They were deposited from bedload transport, migration of transverse bar forms or deltaic growths (Miall 2006). 6) The Gh lithofacies are clast-supported, horizontally stratified and matrix-supported, horizontally stratified conglomerates (Fig.…”

Section: Fig 3 Gravely Lithofacies: A) Sand-and Mud-supported Disormentioning

confidence: 99%

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Lithofacies and depositional environments of the Paleogene / Neogene sediments in the Hoanh Bo Basin (Quang Ninh province, NE Vietnam)

Hoang¹,

Wysocka²,

Phan³

et al. 2015

geol

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Abstract:The Hoanh Bo Basin is a multiple period formed basin which is associated with the tectonic mechanism due to the activity of the Chi Linh-Hon Gai and Trung Luong Faults during the late Paleogene -early Neogene time. The basin is filled with continental sediments, comprising mainly polymictic conglomerates, sandstones, siltstones, claystones and shales. Coarser-grained polymictic deposits predominate along the northern and western margins of the basin, while different types of siltstones, claystones, even sandstones occur in its center, as well as along its southern and eastern parts toward the Ha Long Bay. The source rocks for sedimentary materials are mainly originated from rocks of the Hon Gai and Ha Coi Formations.Based on the dominant grain-size class, texture, stratification, degree of clast rounding and sorting, 17 lithofacies were determined in the Hoanh Bo Basin infill. The basin is filled by gravelly, sandy and fine-grained lithofacies just covers a modest area but it represents a full of succession of 4 depositional systems including alluvial fan, fluvial, deltaic and lacustrine environments. Alluvial fan and fluvial environments are characterized by an assemblage of lithofacies such as sand-and mud-supported disorganized breccias (Gb), clast-to sand-supported conglomerates (Gmm), clast-supported inverse-graded conglomerates (Gig), planar-cross-bedded conglomerates (Gp), trough cross-bedded conglomerates (Gt), horizontally stratified conglomerates (Gh), planar cross-bedded sandstones (Sp), trough cross-bedded sandstones (St), ripple cross-laminated sandstones (Sr), horizontally bedded sandstones (Sh), massive sandstones (Sm), massive mudstones, siltstones (Fsm), laminated siltstones and mudstones (Fl), massive claystones (Fm) and coaly lithofacies (C); the deltaic assemblage is dominated by planar-cross-bedded conglomerates (Gp), horizontally stratified conglomerates (Gh), planar cross-bedded sandstones (Sp), horizontally bedded sandstones (Sh), low-angle cross-bedded sandstones (Sl); while the lacustrine assemblage consists of ripple cross-laminated sandstones (Sr), horizontally bedded sandstones (Sh), normally graded sandstones (Sng), massive mudstones, siltstones (Fsm), laminated siltstones and mudstones (Fl), massive claystones (Fm) and coaly lithofacies (C).

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Section: Methodsmentioning

confidence: 99%

Section: Fig 3 Gravely Lithofacies: A) Sand-and Mud-supported Disormentioning

confidence: 99%

Section: Fig 3 Gravely Lithofacies: A) Sand-and Mud-supported Disormentioning

confidence: 99%

Section: Fig 3 Gravely Lithofacies: A) Sand-and Mud-supported Disormentioning

confidence: 99%

Section: Fig 3 Gravely Lithofacies: A) Sand-and Mud-supported Disormentioning

confidence: 99%

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Lithofacies and depositional environments of the Paleogene / Neogene sediments in the Hoanh Bo Basin (Quang Ninh province, NE Vietnam)

Hoang¹,

Wysocka²,

Phan³

et al. 2015

geol

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Landscape response to Pleistocene-Holocene precipitation change in the Western Cordillera, Peru:¹⁰Be concentrations in modern sediments and terrace fills

McPhillips

Bierman

Crocker

et al. 2013

J. Geophys. Res. Earth Surf.

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The landscape response to climate change is frequently investigated with models because natural experiments on geologic timescales are rare. In Quebrada Veladera, in the western Andes Mountains, the formation of alluvial terraces during periods of high precipitation presents opportunities for such an experiment. We compare drainage‐average erosion rates during Pleistocene terrace deposition with Holocene rates, using cosmogenic 10Be samples for seven pairs of quartz sand taken from the trunk and tributaries of Quebrada Veladera and adjacent terraces. Each pair consists of sediment collected from the modern channel and excavated from an adjacent fill terrace. The terrace fill was deposited at ~16 ka and preserved an isotopic record of paleoerosion rates in the Late Pleistocene. Modern sands yield 10Be concentrations between 1.68 × 105 and 2.28 × 105 atoms/g, corresponding to Holocene erosion rates between 43 ± 3 and 58 ± 4 mm/kyr. The 10Be concentrations in terrace sands range from 9.46 × 104 to 3.73 × 105 atoms/g, corresponding to paleoerosion rates from 27 ± 2 to 103 ± 8 mm/kyr. Smaller, upstream tributaries show a substantial decline in erosion rate following the transition from a wet to dry climate, but larger drainage areas show no change. We interpret this trend to indicate that the wetter climate drove landscape dissection, which ceased with the return to dry conditions. As channel heads propagated upslope, erosion accelerated in low‐order drainages before higher‐order ones. This contrast disappeared when the drainage network ceased to expand; at that point, erosion rates became spatially uniform, consistent with the uniformity of modern hillslope gradients.

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Cenozoic sedimentation and exhumation of the foreland basin system preserved in the Precordillera thrust belt (31-32°S), southern central Andes, Argentina

Levina

Horton

Fuentes³

et al. 2014

Tectonics

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Andean retroarc compression associated with subduction and shallowing of the oceanic Nazca plate resulted in thin-skinned thrusting that partitioned and uplifted Cenozoic foreland basin fill in the Precordillera of west-central Argentina. Evolution of the central segment of the Precordillera fold-thrust belt is informed by new analyses of clastic nonmarine deposits now preserved in three intermontane regions between major east directed thrust faults. We focus on uppermost Oligocene-Miocene basin fill in the axial to frontal Precordillera at 31-32°S along the Río San Juan (Albarracín and Pachaco sections) and the flank of one of the leading thrust structures (Talacasto section). The three successions record hinterland construction of the Frontal Cordillera, regional arc volcanism, and initial exhumation of Precordillera thrust sheets. Provenance changes recorded by detrital zircon U-Pb age populations suggest that initial shortening in the Frontal Cordillera coincided with an early Miocene shift from eolian to fluvial accumulation in the adjacent foreland basin. Upward coarsening of fluvial deposits and increased proportions of Paleozoic clasts reflect cratonward (eastward) advance of deformation into the Precordillera and resultant structural fragmentation of the foreland basin into isolated intermontane segments. Apatite (U-Th)/He thermochronometry of basin fill constrains to 12-9 Ma the most probable age of uplift-induced exhumation and cooling of Precordillera thrust sheets. This apparent pulse of exhumation is evident in each succession, suggestive of rapid, large-scale exhumation by synchronous thrusting above a single décollement linking major structures of the Precordillera.

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The Geology of Fluvial Deposits

Cited by 768 publications

References 482 publications

Lithofacies and depositional environments of the Paleogene / Neogene sediments in the Hoanh Bo Basin (Quang Ninh province, NE Vietnam)

Lithofacies and depositional environments of the Paleogene / Neogene sediments in the Hoanh Bo Basin (Quang Ninh province, NE Vietnam)

Landscape response to Pleistocene-Holocene precipitation change in the Western Cordillera, Peru:¹⁰Be concentrations in modern sediments and terrace fills

Cenozoic sedimentation and exhumation of the foreland basin system preserved in the Precordillera thrust belt (31-32°S), southern central Andes, Argentina

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The Geology of Fluvial Deposits

Cited by 768 publications

References 482 publications

Lithofacies and depositional environments of the Paleogene / Neogene sediments in the Hoanh Bo Basin (Quang Ninh province, NE Vietnam)

Lithofacies and depositional environments of the Paleogene / Neogene sediments in the Hoanh Bo Basin (Quang Ninh province, NE Vietnam)

Landscape response to Pleistocene-Holocene precipitation change in the Western Cordillera, Peru:10Be concentrations in modern sediments and terrace fills

Cenozoic sedimentation and exhumation of the foreland basin system preserved in the Precordillera thrust belt (31-32°S), southern central Andes, Argentina

Contact Info

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Resources

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Landscape response to Pleistocene-Holocene precipitation change in the Western Cordillera, Peru:¹⁰Be concentrations in modern sediments and terrace fills