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Solimoes River

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Journal Article
Published: 01 November 1990
Journal of Sedimentary Research (1990) 60 (6): 827–842.
...Mark J. Johnsson; Robert H. Meade Abstract Modification of sediment composition by chemical weathering depends both on the overall intensity of weathering and on its duration. At Macuapanim Island, Solimboes River (Amazon main channel), Brazil, a number of alluvial deposits have been exposed...
Journal Article
Published: 01 January 2002
Bulletin de la Société Géologique de France (2002) 173 (1): 67–75.
... including Fourier transform infrared spectroscopy (FT-IR), electron paramagnetic resonance (EPR) and potentiometric measurements. Particulate and colloidal matter are organo-mineral and organic, respectively. Signatures of the particulate fractions distinguish Rio Amazonas/Rio Solimoes rivers...
Image
Examples of large <b>river</b> morphology. A: Madeira, Brazil. B: <b>Solimões</b>-Amazon,...
Published: 01 April 2013
Figure 1. Examples of large river morphology. A: Madeira, Brazil. B: Solimões-Amazon, Brazil. C: Iça, Columbia and Peru. D: Orinoco, Venezuela. E: Middle Paraná, Argentina. F: Japurá, Brazil. G: Negro, Brazil. H: Jamuna, Bangladesh. Flow direction is indicated by arrows. Downstream image extent
Journal Article
Published: 01 May 2013
Journal of Paleontology (2013) 87 (3): 484–492.
... are proposed. The samples from the Solimões Formation contain the following taxa: Mediaverrunites elsikii , Mediaverrunites mulleri , Monoporisporites sp., Fusiformisporites crabbii , and Multicellites cingulatus . The presence of these suggests river channel margins colonized by freshwater vegetation, where...
FIGURES
Journal Article
Journal: Palynology
Published: 02 January 2021
Palynology (2021) 45 (1): 3–14.
... by sediment- and nutrient-rich white-water rivers (e.g. the Solimões River). These floodplains include lakes formed between bars, in abandoned river meanders, in depressions, and in old tributary valleys (Junk et al. 2012 ), all formed by fluvial processes (Latrubesse 2012 ). In the extant Amazon Basin...
FIGURES | View All (8)
Journal Article
Journal: Palynology
Published: 02 January 2021
Palynology (2021) 45 (1): 115–141.
.... We studied two cores from the Solimões Formation ( Figures 1, 2 ) that were drilled by the Brazilian Geological Survey (CPRM). Core 1-AS-33-AM (hereafter 33AM) was drilled along the Curuça River, Amazonas State [5°15’S, 71°33’W; elevation 100 m above sea level (asl)] and reached a depth of 404.15 m...
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Journal Article
Journal: PALAIOS
Published: 13 September 2021
PALAIOS (2021) 36 (8): 269–282.
... two of the most prolific fossiliferous bonebeds of the Solimões Formation, the Niteroi and Talismã sites ( Fig. 1 , Table 1 ). The Niterói site (19L 629983E/8879539S, datum WGS84) is on the right bank of the Acre River, near Senador Guiomard municipality, in southeastern Acre State ( Negri 2004...
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Journal Article
Journal: Palynology
Published: 03 April 2019
Palynology (2019) 43 (2): 223–243.
... Formations in Coari ( Figure 3 ; Nogueira et al. 2013 ; Silveira and Souza 2015 ). Figure 3. Correlation of sections discussed in the text. From left to right: (a) Solimões Formation cores in the upper Solimões River (Hoorn et al. 1993 ; Silva Caminha et al. 2010 ; Kachniasz & Silva-Caminha et al...
Journal Article
Journal: GSA Bulletin
Published: 01 May 2011
GSA Bulletin (2011) 123 (5-6): 934–950.
... Be nuclide concentration of all Andean tributaries of the upper Solimões, Ucayali, Napo, Beni, and Mamoré rivers (see Table 3 ) translates to a flux-weighted mean denudation rate of 0.37 ± 0.06 mm/yr. This average value compares to 0.24 ± 0.02 mm/yr ( Fig. 4B ) for central Amazonian river samples, excluding...
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Image
Silicon isotope composition of dissolved silicon (DSi) from <b>rivers</b> of the A...
Published: 01 January 2017
Figure 14 Silicon isotope composition of dissolved silicon (DSi) from rivers of the Amazon Basin. Note the two different trends towards lower Si concentration possibly denoting two different weathering styles: with clay formation, which leads to heavy dissolved silicon in the Solimoes and Madeira
Journal Article
Journal: Palynology
Published: 03 July 2017
Palynology (2017) 41 (3): 412–422.
... of the Amazon and therefore its biogeography and possibly biodiversity. Herein we present palynological and lithostratigraphical results from the Solimões Formation in the well 1AS-33-AM. It was drilled in the Solimões Basin, Amazonas State, Brazil, reaching 405 m in depth. We identified 152 palynomorphs, in 32...
Journal Article
Journal: Palynology
Published: 01 October 2020
Palynology (2020) 44 (4): 675–695.
... that Pliocene sedimentation is also recorded in the Western Amazonia of Peru, and provides new palynological information compared with the Mio–Pliocene Solimões, Acre, and eastern Amazonas basins. CONTACT Francisco Javier Parra fjparran@unal.edu.co Géosciences Environnement Toulouse (GET), Université de...
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Journal Article
Journal: PALAIOS
Published: 01 December 2002
PALAIOS (2002) 17 (6): 591–601.
... has been hampered by limited outcrop exposure. Also, ichnological data largely have been ignored. This study focuses on ichnological and sedimentological relationships observed in outcropping strata of the Solimoes Formation (Middle Miocene) along the Acre River in western Brazil and northern Bolivia...
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Journal Article
Published: 01 May 1999
Journal of Sedimentary Research (1999) 69 (3): 563–575.
... tributaries draining the basic and metamorphic rocks from the southeastern Guiana Shield, and strongest influence of the upstream Amazon and Solimoes areas. These source signals are damped by transitional storage and intense lateral sediment exchange between channel and floodplain. The Brazilian Shield...
Journal Article
Journal: Geology
Published: 06 March 2019
Geology (2019) 47 (5): 403–406.
... (∼700 m from the banks). This lower transference of sediments into the water-saturated area of the IPF in reach 1 was also detected in our SSSC mapping ( Fig. 1 ). It happens because the well-developed CDF in the Solimões River constrains flooding and provides limited channel-floodplain connectivity...
FIGURES
Image
A: Physiography and simplified detrital zircon (DZ) source terrane map of A...
Published: 16 April 2019
of Ocean Drilling Program (ODP) sediment cores used in this study. Geology adapted is from Chew et al. (2011 , and references therein), and fan extents are from Damuth et al. (1995) . B: Pie diagrams with percentages for U-Pb DZ ages from samples in Solimões–upper Amazon River, lower Amazon River
Journal Article
Journal: Geology
Published: 01 July 2010
Geology (2010) 38 (7): e213.
... River. Here, we provide some clarifications and show that a late Miocene origin of the Amazon River is underpinned by a very robust data set. Firstly, Campbell comments that the absolute ages of the base and top of biozone NN9 differ from Lourens et al. (2004) . The presented biostratigraphic zonation...
Image
Paleogeography for northern South America ( Figueiredo et al., 2009 ) and A...
Published: 01 December 2012
Figure 4. Paleogeography for northern South America ( Figueiredo et al., 2009 ) and Amazonian geochronological provinces ( Almeida et al., 2007 ). (A) During the Middle Miocene (ca. 14 Ma) the Purus arch formed a continental divide separating east from west Amazonia. Rivers west of the Purus arch
Journal Article
Journal: PALAIOS
Published: 13 February 2018
PALAIOS (2018) 33 (2): 55–60.
... ). The examples reported here illustrate how the provenance, with the help of TST, is of paramount importance, yielding data that enhance the strength of taphonomic and paleoenvironmental analyzes. It should also be noted that most Solimões Formation outcrops are river banks, exposed only in drier months...
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Journal Article
Journal: Geology
Published: 01 July 2009
Geology (2009) 37 (7): 619–622.
...J. Figueiredo; C. Hoorn; P. van der Ven; E. Soares Abstract New biostratigraphic, isotopic, and well log data from exploration wells on the outer continental shelf and uppermost Amazon deep-sea fan, Brazil, reveal that the Amazon River was initiated as a transcontinental river between 11.8 and 11.3...
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