Petrological and Geochemical Constraints on Provenance, Paleoweathering, and Tectonic Setting of Clastic Sediments From the Neogene Lambir and Sibuti Formations, Northwest Borneo

Nagarajan, R.; Armstrong‐Altrin, John S.; Kessler, Franz L.; Jong, John

doi:10.1016/b978-0-12-803386-9.00007-1

Cited by 33 publications

(43 citation statements)

References 54 publications

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“…The geo chem is try of siliciclastic rocks is strongly in fluenced by var i ous fac tors in clud ing source rock com po si tion, tec tonic set ting, weath er ing, trans por ta tion mech a nism as well as depositional and diagenetic pro cesses (Suttner, 1974;Roser and Korsch, 1986). Many stud ies have doc u mented that the geo chem i cal com po si tion of sand stones and shales pro vides sig nif i cant clues to as sess prov e nance, tec tonic setting and palaeoclimate of the source area (e.g., McLennan et al, 1993;Cullers, 2000;Armstrong-Altrin, 2009;Nagarajan et al, , 2017Armstrong-Altrin et al, 2017. The siliciclastic Shemshak Group (Up per Tri as sic-Mid dle Ju rassic) is one of the most ex ten sive lithostratigraphic units of the Iran Plate, wide spread across the north ern Alborz and East Cen tral Iran of the Ira nian plate (Tabas and North of Kerman; Fürsich et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Geochemistry of siliciclastic rocks from the Shemshak Group (Upper Triassic–Middle Jurassic), northeastern Alborz, northern Iran: implications for palaeoweathering, provenance, and tectonic setting

Taheri

Jafarzadeh

Armstrong‐Altrin

et al. 2018

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Com bined petrographic and geo chem i cal data of the siliciclastic sed i men tary rocks from the Shemshak Group in the northeast ern Alborz Moun tains, north of Iran are de scribed, to gether with their im pli ca tions for palaeoweathering, their prov enance, and tec tonic set ting. Based on field ob ser va tions and modal com po si tion, the sand stones are clas si fied as litharenites. The chem i cal in dex of al ter ation (CIA) in di cated that the source ter rains un der went a mod er ate in ten sity of chem i cal weath er ing. The in dex of chem i cal vari a tion (ICV) val ues in di cated that the Shemshak Group rocks were im ma ture and re lated to a source area with an ac tive tec tonic re gime. Ma jor, trace and rare earth el e ment (REE) data sug gested the dom i na tion of mixed sed i men tary (re cy cled) and ig ne ous rocks in the source area of the Shemshak Group. Petrographic and geo chem i cal char ac ter is tics of Shemshak Group rocks sug gest an ac tive con ti nen tal mar gin (ACM), which cor re sponds to the col li sion of the Iran plate with the Turan plate.

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Section: Introductionmentioning

confidence: 99%

Geochemistry of siliciclastic rocks from the Shemshak Group (Upper Triassic–Middle Jurassic), northeastern Alborz, northern Iran: implications for palaeoweathering, provenance, and tectonic setting

Taheri

Jafarzadeh

Armstrong‐Altrin

et al. 2018

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“…The enrichment of MnO is probably due to the mineral manganosite. The Na 2 O and K 2 O contents in the cores GM6 and GM7 are depleted relative to UCC, indicating that the sediments are low in feldspar content (Nagarajan et al 2017). The enrichment of Fe 2 O 3 and TiO 2 contents is probably due to the presence of accessary minerals like magnetite and ilmenite, respectively (Papadopoulos et al 2016).…”

Section: Major Element Concentrationsmentioning

confidence: 96%

“…The CIA, CIW, and PIA values of the core sediments are indicating a moderate to intense weathering condition (Table 3). On the other hand, index of compositional variability (ICV = [(CaO Cox et al 1995), where Fe 2 O 3 (t) represents total iron, is another method commonly used to infer sediment recycling, which decreases when weathering increases (Armstrong-Altrin et al 2014, 2017Madhavaraju et al 2017;Nagarajan et al 2017). According to Cox et al (1995), the ICV value is high (>1) in little-weathered detrital minerals like pyroxene and feldspar and it is low (<1) in highly-weathered fine-grained sediments like clay.…”

Section: Palaeoweathering Indices and Sediment Recyclingmentioning

confidence: 99%

Textural and geochemical characteristics of late Pleistocene to Holocene fine-grained deep-sea sediment cores (GM6 and GM7), recovered from southwestern Gulf of Mexico

et al. 2018

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Texture, mineralogy, geochemistry, and 14 C ages of two deep-sea sediment cores (GM6 and GM7) recovered in the southwestern Gulf of Mexico were investigated to infer their provenance and depositional condition. The sediments are enriched in fine-grained silt and clay and poor in sand content. Mineralogically, the sediments consist of quartz, calcite, smectite, and kaolinite. Based on the 14 C data, the age of the GM6 and GM7 sediment cores were calculated as 23,615 cal yrs. BP and 19,007 cal yrs. BP, respectively. The weathering indices such as chemical index of alteration (CIA), chemical index of weathering (CIW), and plagioclase index of alteration (PIA) in GM6 (56-69, 60-74, and 61-73, respectively) and GM7 (54-69, 57-76, and 55-74, respectively) cores revealed a moderate-to-high intensity of weathering. The rare earth element (REE) patterns suggested that the sediments were derived mostly by the weathering of intermediate rocks, exposed along the coastal regions of the Gulf of Mexico. The trace elemental ratios like V/Cr (<2), Ni/Co (<2), and Cu/Zn (<1), authigenic uranium content (<1), and Ce anomaly (Ce/Ce * ≤ 1) suggested that the sediments were deposited under an oxic condition, which was also revealed by the benthic foraminiferal assemblages throughout the GM6 and GM7 sediment cores.

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“…from a comprehensive hydrological and geological map reconstructed by Wu, Ma, and Zhang (1996) and Wu (2001). When the ratio is <1, it means the samples are chemical immaturity (Nagarajan, Armstrong-Altrin, Kessler, & Jong, 2017). PetroChina provided 21 thin sections and 13 samples of heavy mineral analysis from the Es1 interval in the study area.…”

Section: Drainage Evaluations and Detrital Zircon Analysismentioning

confidence: 99%

“…When the ratio is >1, it means the samples are compositionally mature and may likely recycle during transportation and deposition. When the ratio is <1, it means the samples are chemical immaturity (Nagarajan, Armstrong-Altrin, Kessler, & Jong, 2017). The zircon, tourmaline and rutile maturity index (ZTR), another measure of mineral assemblage stability, is determined by dividing the quantity of zircon, tourmaline and rutile (super-stable accessory minerals) by the total amount of accessory minerals (Hubert, 1962).…”

Section: Drainage Evaluations and Detrital Zircon Analysismentioning

confidence: 99%

Evolution of drainage, sediment‐flux and fluvio‐deltaic sedimentary systems response in hanging wall depocentres in evolving non‐marine rift basins: Paleogene of Raoyang Sag, Bohai Bay Basin, China

et al. 2019

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The dynamics of sediment feeding into rift basins and the geomorphologic nature of source areas are critical elements in understanding the evolution of rifted basins. This study integrates seismic, well and geochronologic data on the western dipslope of the Raoyang Sag, a rift associated sub-basin to the larger Bohai Bay Basin of China to define the history of drainage development for the basin and to assess the sedimentologic response to drainage evolution events. In the Paleogene-age Lixian Slope, as indicated by paleo-drainage configuration, progradational seismic geometries, compositional maturity and zircon-tourmaline-rutile maturity index trends, three drainages; the paleo-Daqing River, paleo-Tang River and paleo-Dasha River drainages were feeding three closely spaced hanging wall deltaic depositional systems; Delta A fed from the northwest, Delta B fed from the west and Delta C fed from the southwest, respectively. From the late Eocene to early Oligocene, a decrease in sedimentflux into the hanging wall is documented and petrographic analysis is used to link these changes to stream-capture in the upstream catchment of the Daqing River. This change is coupled with morphologic changes in the geometries of Deltas A and C, both of which show decreasing deltaic areas, changes in lobe geometry and changes in distributary channel sizes. In addition, the progradational direction of Delta C changes from perpendicular-to-the-rift axis to prograding oblique-to-the-rift axis. It is apparent that the progradation and retrogradational changes in rift margin deltas do not happen in isolation, but such changes can affect growth and progradation direction in adjacent deltas. This work shows that the decrease in sediment-flux, caused by a drainage capture, will result in a decrease in distributary channel size and delta size and may result in upstream deltas taking advantage of such decreasing confinement to prograde more obliquely to the rift axis. K E Y W O R D SBohai Bay Basin, morphology, rift basin, sediment-flux, transverse delta, zircon | 117 EAGE CHEN Et al. Highlights • Headward incision, stream capture or drainage diversion are drivers of sediment flux change to the Lixian slope, Raoyang Sag. • Temporal changes in channel morphometrics and energy can be coupled with petrographic observations to map a basin's sediment flux history. • Transverse deltas entering a rift interact, influencing each other's size and progradation directions. 118 | EAGE CHEN Et al. | 119 EAGE CHEN Et al. 120 | EAGE CHEN Et al. F I G U R E 3A generalized stratigraphic column that shows the lithostratigraphic series and the rift stages, along with seismic-well ties and sedimentary facies for the G28 well. The column of lithology and depositional facies in the left side are modified after Zhang and Yin (2005) and Chen et al. (2017), and the geological time is after Ryder et al. (2012). The study interval includes the Paleogene Es2 and Es1 which are expanded on the right side of the diagram, showing detailed lithology, facies, sub-facies and g...

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Petrological and Geochemical Constraints on Provenance, Paleoweathering, and Tectonic Setting of Clastic Sediments From the Neogene Lambir and Sibuti Formations, Northwest Borneo

Cited by 33 publications

References 54 publications

Geochemistry of siliciclastic rocks from the Shemshak Group (Upper Triassic–Middle Jurassic), northeastern Alborz, northern Iran: implications for palaeoweathering, provenance, and tectonic setting

Geochemistry of siliciclastic rocks from the Shemshak Group (Upper Triassic–Middle Jurassic), northeastern Alborz, northern Iran: implications for palaeoweathering, provenance, and tectonic setting

Textural and geochemical characteristics of late Pleistocene to Holocene fine-grained deep-sea sediment cores (GM6 and GM7), recovered from southwestern Gulf of Mexico

Evolution of drainage, sediment‐flux and fluvio‐deltaic sedimentary systems response in hanging wall depocentres in evolving non‐marine rift basins: Paleogene of Raoyang Sag, Bohai Bay Basin, China

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