Integrated analysis for constraining palaeoclimatic and volcanic influences on clay–mineral assemblages in orogenic basins (Palaeogene Andean foreland, Northwestern Argentina)

Campo, Margarita Do; Papa, Cecilia del; Nieto, Fernando; Hongn, Fernando; Petrinovic, Iván Alejandro

doi:10.1016/j.sedgeo.2010.04.002

Cited by 55 publications

(32 citation statements)

References 46 publications

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“…The mottled fabric indicates incipient palaeosols (Retallack, ; Kraus & Hasiotis, ). The presence of illite points to a probably enhanced hydrolysis index, which is consistent with high erosion rates (Chamley, ; Do Campo et al ., ). Since the illite/smectite contains only 10% layers of illite, it is interpreted as almost pure smectite and therefore as indicator of seasonality in the system (Chamley, ).…”

Section: Palaeoenvironments Of the Río Mendoza–cerro De Las Cabras Sementioning

confidence: 97%

An integrative physical, mineralogical and ichnological approach to characterize underfilled lake‐basins

et al. 2020

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Lakes are particularly sensitive to environmental fluctuations, which are recorded in their facies and stratigraphy. Ephemeral lakes reveal their sensitivity to palaeoenvironmental changes in the overprinting of the sedimentary features in every single bed. Tetrapod‐track taphonomic‐modes and ichnological taphonomic‐pathways can be used as sensitive indicators of environmental conditions of the track‐bearing beds during deposition and imprinting. The Middle Triassic Cerro de las Cabras succession (Cuyana Basin, Argentina) provides an excellent opportunity to these environmental indicators in an underfilled palaeolake. A model of ichnological preservation for underfilled lake systems is proposed and the role of the ichnology record in the sequence stratigraphy analysis is evaluated, based on the integration of tetrapod‐track modes, taphonomic‐pathways of playa‐lake ichnofauna, mineralogy and physical data. Soft‐ground suites include those dominated by invertebrate grazing traces and arthropod locomotion traces (Suite 1), and those overprinted by horizontal‐vertical dwelling burrows with tetrapod tracks preserved in taphonomic modes B and C (Suite 2). The firm‐ground suite (Suite 3) comprises tetrapod‐tracks with the best preservation styles (modes A and B) along less abundant invertebrate dwelling and feeding traces as found in Suite 2. Clay mineralogy (dominated by illite with subordinate smectite) suggests low plasticity of the layers, in agreement with low‐relief deformation structures observed in tetrapod‐track taphonomic‐modes. The well‐preserved track tetrapod features documented in the Cerro de las Cabras succession, together with the absence of pedogenic disturbance, trampling obliterating the footprints, and/or evidence of strong disturbance by wind, desiccation and/or precipitation, supports short periods of exposure of the imprinted surface particular to this succession. An integrated multiproxy approach is proposed to evaluate the evolutionary interpretation and identification of autogenic versus allogenic controls in underfilled lake‐basin histories. The observed aggradational‐trend suggests an equilibrium between rates of accommodation change and sediment supply, and that the basin‐centre did not experience prolonged sediment‐starved conditions.

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Section: Palaeoenvironments Of the Río Mendoza–cerro De Las Cabras Sementioning

confidence: 97%

An integrative physical, mineralogical and ichnological approach to characterize underfilled lake‐basins

et al. 2020

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“…During eodiagenesis, volcanic rock fragments can easily transform into smectite (Campo, Papa, Nieto, Hongn, & Petrinovic, ; Shoval, ). The Shanxi Formation tight sandstones contain abundant volcanic rock fragments according to the petrologic analysis; thus, it can be inferred that the sandstone was rich in smectite during the early stage of diagenesis, providing favourable condition for the formation of authigenic quartz at high temperature.…”

Section: Discussionmentioning

confidence: 99%

“…The frequently observed micro-stylolites in CL images and clay minerals associated with authigenic quartz in SEM images show that mineral alteration and pressure dissolution are the most likely sources of silica for quartz precipitation in the Shanxi Formation sandstones. Possible reactions during formation of authigenic quartz are discussed as follows: (1) Transformation of clay minerals During eodiagenesis, volcanic rock fragments can easily transform into smectite (Campo, Papa, Nieto, Hongn, & Petrinovic, 2010;Shoval, 2004). The Shanxi Formation tight sandstones contain abundant volcanic rock fragments according to the petrologic analysis; thus, it can be inferred that the sandstone was rich in smectite during the early stage of diagenesis, providing favourable condition for the formation of authigenic quartz at high temperature.…”

Section: Source Of Authigenic Quartzmentioning

confidence: 99%

Diagenetic characteristics and reservoir quality in tight gas sandstones: A case study of the Shanxi Formation in the north‐eastern Ordos Basin, China

et al. 2018

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Reservoir quality is critical in tight gas exploration. A systematic study of the petrological, petrophysical, and diagenetic characteristics of the Shanxi Formation sandstones in the north‐eastern Ordos Basin (China) was undertaken to characterize the pore system of these tight sandstones and recognize the distribution of reservoirs favourable for hydrocarbon accumulation. The results suggest that the Shanxi Formation sandstone has low compositional and moderate textural maturity, with its porosity ranging from 0.7% to 11.8% (average 5.97%) and permeability ranging from 0.001 to 2.77 mD (average 0.36 mD). In addition, thin section and SEM observations suggest that the sandstone is dominated by secondary dissolution pores, primary intergranular pores as well as microfractures, and has undergone compaction, cementation, and dissolution. Diagenetic minerals, such as carbonate cements, authigenic quartz, clay minerals, and dissolved feldspar, are identified. Fluid inclusions are observed in healed microfractures of quartz grains and in quartz overgrowths, while the homogenization temperatures of fluid inclusions in healed microfractures and in quartz overgrowth are in the ranges of 92.8–179.1°C (average 134.8°C) and 104.7–169.1°C (average 145.7°C), respectively. Authigenic kaolinite is sourced from the process of K‐feldspar dissolution, authigenic illite is sourced from transformation of smectite and kaolinite, while sources for quartz cements include mineral alteration and pressure dissolution. Selective dissolution of K‐feldspar in the presence of carbonate minerals is observed in the Shanxi Formation tight sandstones due to the different equilibrium constants of carbonate minerals and K‐feldspar leaching, resulting in dissolution pores associated with K‐feldspar. Reservoir quality in the Shanxi Formation tight sandstones is greatly influenced by diagenesis, as compaction and cementation are responsible for the loss of porosity while dissolution accounts for the enhancement of secondary porosity.

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“…The geochemical and mineralogical signatures of siliciclastic and volcanoclastic sediments from different parts of the world are used to infer the source rock composition, climate, mode of transport, depositional environment, degree of source rock weathering, tectonic setting and post depositional processes such as diagenesis and metasomatism (McLennan et al, 1993;Burger et al, 2002;Kiipli et al, 2007;Do Campo et al, 2010;Nagarajan et al, 2014;. The geochemistry of zircon is closely related to its parental magma composition and is effective for fingerprinting tectono-magmatic provenance (Grimes et al, 2015).…”

Section: Geochemical Provenance Signaturesmentioning

confidence: 99%

“…This has produced tephra together with a few crystals and these were expelled through the vent. Assuming the control of stratospheric winds with a present-day dispersal pattern (Do Campo et al, 2010), deflection of the plinian and sub-plinian eruption column occurred in response to a dominant stratospheric wind and promoted aeolian transport and dispersal of volcanic material of the size range of fine ash were interpreted and compatible with a distal source. The general distal nature of rhyolitic to dacitic pyroclastic components (Bertrand et al, 2014;Albert et al, 2015;Donato et al, 2016) supports the interpretation of the prevalence of a contemporaneously active Late Middle Miocene magmatic source from regions depicted in Fig.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Late Middle Miocene volcanism in Northwest Borneo, Southeast Asia: Implications for tectonics, paleoclimate and stratigraphic marker

Ramkumar

Santosh

Nagarajan

et al. 2018

Palaeogeography, Palaeoclimatology, Palaeoecology

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Explosive volcanic events often produce pyroclastic materials that can be recognized from the geological record. These discrete pyroclastics form regional marker beds. Here we report the occurrence of a tephra layer interbedded within very thick coal beds near Mukah, Sarawak, Borneo. Traceable for tens of kilometers in the Mukah area of Sarawak, this tephra layer can be considered as regional stratigraphic marker with precise chronostratigraphic control. Systematic sedimentological, mineralogical, geochemical and zircon U-Pb geochronological studies have revealed a major effusive volcanic event during the latest Middle Miocene, presumably contemporaneous and/or related to a magmatic event of an earlier phase of the Mt. Kinabalu pluton or magmatism in West Sarawak or East Sabah. The volcanic event had promoted catastrophic flooding of coastal swamps and fallout from the ash clouds that formed a regionally monotonous tephra layer across the Serravallian-Tortonian boundary. In conjunction with the regional occurrences of trap rocks, structural trends and known tectonic events, we constrained the regional depositional environments, and climate. The tephra layer was deposited in a coastal plain-swamp,seasonal, shallow, high-moderate energy fluvial channel-lacustrine environmental setting, wherein atmospheric fallout and eroded material from regoliths formed over older basement and volcanic rocks of the hinterland which were mixed to produce the tephra layer. This tephra layer is sandwiched between the very thick coal beds. A pre-existent volcanic chamber that was active for a long time, also experienced periodic explosive activity from probably the same magma chamber and conduit and including a major explosive activity that recycled early-formed crystals and felsic magma (rhyolite-dacite) during the major effusive event are also recognized. Our findings provide robust evidence for the prevalence of intensive chemical weathering under a wet-humid climate, and relative tectonic quiescence before the major effusive event, and the existence of vast, monotonously gently-sloping coastal plains and luxuriant vegetation akin to the present.

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Integrated analysis for constraining palaeoclimatic and volcanic influences on clay–mineral assemblages in orogenic basins (Palaeogene Andean foreland, Northwestern Argentina)

Cited by 55 publications

References 46 publications

An integrative physical, mineralogical and ichnological approach to characterize underfilled lake‐basins

An integrative physical, mineralogical and ichnological approach to characterize underfilled lake‐basins

Diagenetic characteristics and reservoir quality in tight gas sandstones: A case study of the Shanxi Formation in the north‐eastern Ordos Basin, China

Late Middle Miocene volcanism in Northwest Borneo, Southeast Asia: Implications for tectonics, paleoclimate and stratigraphic marker

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