Peruvian sedimentary basin
Pisco Basin (Spanish :Cuenca de Pisco ) is asedimentary basin extending over 300 kilometres (190 mi) in southwestern Peru.[ 1] The basin has a 2-kilometre (1.25-mile) thick sedimentary fill, which is about half the thickness of more northernforeland basins in Peru.[ 2]
The oldest known sediments are theEocene sandstones of theCaballas Formation , while the youngest deposits, the fossiliferousPisco Formation , date to theEarly Pleistocene .[ 2] [ note 1] In relation to present-day, topography the fill of Pisco Basin makes the upper part of theCoastal Cordillera of southern Peru , the coastal plains, theIca-Nazca Depression and the Andean foothills.[ 3]
The basin is renowned for hosting various highly fossiliferousstratigraphic units ; the Pisco Formation has provided a wealth of marine mammals (including sloths), birds, fish and other groups, as have theChilcatay ,Otuma andParacas Formations .
Stratigraphy of Pisco Basin[ note 2] Age[ 2] [ 5] SALMA [ note 3] Units[ 2] [ 5] Environment [ 2] [ 5] Lithology [ 2] [ 5] [ 6] Pleistocene Uquian Pisco Lagoonal to near-shoreBioclastic conglomerate ,sandstone Middle Miocene Colloncuran Early Miocene Colhuehuapian Chilcatay Marine Siltstone , sandstoneLate Oligocene Deseadan Early Oligocene Late Eocene Tinguirirican Divisaderan Otuma Marine embayment Bioclastic sandstone, sandstone, silty sandstone,mudstone ,dolomitic sediment Late Eocene Divisaderan Paracas Yumaque Mudrock,phosphatic shale,diatomite ,porcellanite ,chert Late Eocene Mustersan Los Choros Inner shelf ,shoreface ,intertidal Bioclastic conglomerate, sandstone, siltstone, mudrock Eocene Casamayoran Caballas Fluvial Sandstone,tuff ,coal
Tectonic and sedimentary evolution [ edit ] The basin developed in a setting ofextensional tectonics from Eocene to the Late Miocene with short-lived episode of basin inversion in the Middle Miocene.[ 7] Late Pliocene andPleistocene uplift of the basin may be consequence of thesubduction ofNazca Ridge .[ 2] [ 8]
Sedimentary strata of the basin shows evidence for a series ofmarine transgressions during the last50 million years .[ 9] These marine transgressions occurred in a sequence 41-34Ma , 31-28 Ma, 25-16 Ma, 15-11 Ma, 10-5 Ma, and 4-2 Ma.[ 9] The end of most of the marine transgressions is thought to be associated either withglobal sea level falls orcompressional events in the Andes .[ 9]
Oligo-Miocene transgression [ edit ] The marineOligo -Miocene (25–16 Ma[ 9] ) marine transgression is evidenced by a series ofsedimentary strata containing fossils of marinediatoms ,Peruchilus snails andPitar andCucullaea clams.[ 10] Oligo-Miocene marine environments in the Pisco Basin range from littoral toshelf .[ 10] Moquegua Basin southeast of Pisco Basin appear to have been unaffected by the transgression.[ 10]
Within theAndean margin contemporary marine transgressions are also known from southern Chile, Patagonia and Colombia.[ 10] As such the marine transgression is thought to represent a regional phenomenon with the steadily rising central Andes being an exception.[ 10]
Chilcatay Formation [ edit ] Group Fossils Notes Mammals Chilcacetus cavirhinus ,Huaridelphis raimondii ,Incacetus broggii ,Inticetus vertizi ,Macrosqualodelphis ukupachai ,Notocetus vanbenedeni ,cf. Kentriodon sp. ,Cetotheriidae indet. ,Eurhinodelphinidae indet. ,Mysticeti indet. ,Odontoceti indet. ,Pinnipedia indet. ,Physeteroidea indet. ,Squalodelphinidae indet. Birds Palaeospheniscus sp. Reptiles Testudines indet. Fish Carcharhinus cf. brachurus ,Carcharodon hastalis ,Carcharodon subauriculatus ,Hemipristis cf. serra ,Isurus desori
Notes and references [ edit ] ^ Solís Mundaca, 2018, p.1 ^a b c d e f g Dunbar et al., 1990 ^ León et al. 2007, p. 7. ^ León et al. 2007, p. 44. ^a b c d DeVries et al., 2017 ^ León et al. 2007, p. 45. ^ León et al. 2007, p. 146. ^ León et al. 2007, p. 145. ^a b c d DeVries, 1998 ^a b c d e Macharé et al., 1988 ^a b Ullujaya atFossilworks .org^ Ullujaya 2 atFossilworks .org^a b Santa Rosa atFossilworks .org^a b Zamaca atFossilworks .org^ Cerro Buque M2 atFossilworks .org^ Cerro Buque M8 atFossilworks .org^ Paracas Bay atFossilworks .org^ Archaeocete Valley, Otuma, AV-10 atFossilworks .org^ Ullujaya Valley atFossilworks .org^ Bajada del Diablo atFossilworks .org^a b Paracas Reserve atFossilworks .org^ Archaeocete Valley atFossilworks .org^ Archaeocete Valley, Paracas, AV-17 atFossilworks .org^ Archaeocete Valley, Paracas, AV-19 atFossilworks .org^a b Lambert et al., 2017 ^ Lambert, Olivier; Bianucci, Giovanni; Salas-Gismondi, Rodolfo; Di Celma, Claudio; Steurbaut, Etienne; Urbina, Mario; de Muizon, Christian (2019). "An Amphibious Whale from the Middle Eocene of Peru Reveals Early South Pacific Dispersal of Quadrupedal Cetaceans".Current Biology .29 (8): 1352–1359.e3.Bibcode :2019CBio...29E1352L .doi :10.1016/j.cub.2019.02.050 .hdl :11581/425570 .ISSN 0960-9822 .PMID 30955933 . ^ Bianucci, Giovanni; Lambert, Olivier; Urbina, Mario; Merella, Marco; Collareta, Alberto; Bennion, Rebecca; Salas-Gismondi, Rodolfo; Benites-Palomino, Aldo; Post, Klaas; de Muizon, Christian; Bosio, Giulia; Di Celma, Claudio; Malinverno, Elisa; Pierantoni, Pietro Paolo; Villa, Igor Maria (2023-08-02)."A heavyweight early whale pushes the boundaries of vertebrate morphology" .Nature .620 (7975):824– 829.Bibcode :2023Natur.620..824B .doi :10.1038/s41586-023-06381-1 .hdl :10281/434998 .ISSN 1476-4687 .PMID 37532931 . ^ Quebrada Perdida atFossilworks .org^ Collareta, Alberto; Tejada-Medina, Luz; Chacaltana-Budiel, César; Landini, Walter; Altamirano-Sierra, Alí; Urbina-Schmitt, Mario; Bianucci, Giovanni (2020-03-17)."A rhinopristiform sawfish (genus Pristis) from the middle Eocene (Lutetian) of southern Peru and its regional implications" .Carnets Geol .20 (5): 91.doi :10.4267/2042/70759 .hdl :20.500.12544/2621 .ISSN 1634-0744 . Stratigraphy DeVries, Thomas J.; Urbina, Mario; Jud, Nathan A. (2017),"The Eocene-Oligocene Otuma Depositional Sequence (East Pisco Basin, Peru): Paleogeographic and Paleoceanographic Implications of New Data" (PDF) ,Boletín de la Sociedad Geológica del Perú ,112 :014– 038, retrieved2020-03-09 Dunbar, Robert B.; Marty, Richard C.; Baker, Paul A. (1990), "Cenozoic marine sedimentation in the Sechura and Pisco basins, Peru",Palaeogeography, Palaeoclimatology, Palaeoecology ,77 (3– 4):235– 261,Bibcode :1990PPP....77..235D ,doi :10.1016/0031-0182(90)90179-B Geology publications [ edit ] León, Walter; Aleman, Antenor; Rosell, Walter; Torres, Víctor; de la Cruz, Orlando (2007),Estratigrafía, sedimentología y evolucón tectónica de la cuenca Pisco Oriental (in Spanish), vol. 27, Estudios Regionales, Serie D, p. 1, retrieved2020-03-09 Devries, T.J. (1998), "Oligocene deposition and Cenozoic sequence boundaries in the Pisco Basin (Peru)",Journal of South American Earth Sciences ,11 (3):217– 231,Bibcode :1998JSAES..11..217D ,doi :10.1016/S0895-9811(98)00014-5 Macharé, José; Devries, Thomas; Barron, John; Fourtanier, Élisabeth (1988),"Oligo-Miocene transgression along the Pacifie margin of South America: new paleontological and geological evidence from the Pisco basin (Peru)" (PDF) ,Geódynamique ,3 (1– 2):25– 37, retrieved2020-03-09 Paleontology publications [ edit ] Solís Mundaca, Flavio Alejandro (2018),Bioestratigrafía e implicancias paleoceanográficas de las diatomeas de la sección Cerro Caucato, Formación Pisco, Ica, Peru (MSc. thesis) (PDF) ,Universidad Peruana Cayetano Heredia , pp. 1– 158, retrieved2018-09-10 Lambert, O.; Martínez Cáceres, M.; Bianucci, G.; Di Celma, C.; Salas Gismondi, R.; Steurbaut, E.; Urbina, Mario; de Muizon, C. (2017),"Earliest Mysticete from the Late Eocene of Peru Sheds New Light on the Origin of Baleen Whales" ,Current Biology ,27 (10):1– 7,Bibcode :2017CBio...27E1535L ,doi :10.1016/j.cub.2017.04.026 ,hdl :11581/396095 ,PMID 28502655 , retrieved2019-02-04 Chilcatay Formation Bianucci, Giovanni; Bosio, Giulia; Malinverno, Elisa; De Muizon, Christian; Villa, Igor M.; Urbina, Mario; Lambert, Olivier (2018), "A new large squalodelphinid (Cetacea, Odontoceti) from Peru sheds light on the Early Miocene platanistoid disparity and ecology",Royal Society Open Science ,5 (4) 172302,Bibcode :2018RSOS....572302B ,doi :10.1098/rsos.172302 ,PMC 5936943 ,PMID 29765678 De la Cruz, Aldo Alván (2008),"Geología de Ocucaje: aportes en la sedimentología y paleontología de Lomas de Ullujaya (Ica, Perú)" (PDF) ,Revista del Instituto de Investigaciones FIGMMG ,11 :51– 59, retrieved2017-08-15 Lambert, Olivier; De Muizon, Christian; Malinverno, Elisa; Di Celma, Claudio; Urbina, Mario; Bianucci, Giovanni (2017),"A new odontocete (toothed cetacean) from the Early Miocene of Peru expands the morphological disparity of extinct heterodont dolphins" ,Journal of Systematic Palaeontology ,16 (12):981– 1016,doi :10.1080/14772019.2017.1359689 ,hdl :11568/891482 , retrieved2019-02-12 Lambert, Olivier; Bianucci, Giovanni; Urbina, Mario (2014),"Huaridelphis raimondii , a new early Miocene Squalodelphinidae (Cetacea, Odontoceti) from the Chilcatay Formation, Peru" ,Journal of Vertebrate Paleontology ,34 (5):987– 1004,Bibcode :2014JVPal..34..987L ,doi :10.1080/02724634.2014.858050 , retrieved2019-02-12 Paracas Group Clarke, Julia A.; Ksepka, Daniel T.; Stucchi, Marcelo; Urbina, Mario; Giannini, Norberto; Bertelli, Sara; Narváez, Yanina; Boyd, Clint A. (2007),"Paleogene equatorial penguins challenge the proposed relationship between penguin biogeography, body size evolution, and Cenozoic climate change" ,Proceedings of the National Academy of Sciences ,104 (28):11545– 11550,doi :10.1073/pnas.0611099104 ,PMC 1913862 ,PMID 17601778 , retrieved2017-08-15 Pisco Formation Altamirano Sierra, Alí J (2013),"Primer registro de pelicano (Aves: Pelecanidae) para el Mioceno tardio de la formacion Pisco, Peru" (PDF) ,Bulletin de l'Institut français d'études andines ,42 :1– 12, retrieved2017-09-04 Báez Gómez, Diego A (2006),"Estudio paleoambiental de la formación Pisco:: Localidad Ocucaje" (PDF) ,Revista del Instituto de Investigaciones FIGMMG ,9 :64– 69, retrieved2017-09-04 Bianucci, Giovanni; Di Celma, Claudio; Urbina, Mario; Lambert, Olivier (2016),"New beaked whales from the late Miocene of Peru and evidence for convergent evolution in stem and crown Ziphiidae (Cetacea, Odontoceti)" (PDF) ,PeerJ ,4 e2479,doi :10.7717/peerj.2479 ,PMC 5036081 ,PMID 27688973 , retrieved2019-02-12 Brand, Leonard; Urbina, Mario; Chadwick, Arthur; DeVries, Thomas J.; Esperante, Raul (2011), "A high resolution stratigraphic framework for the remarkable fossil cetacean assemblage of the Miocene/Pliocene Pisco Formation, Peru",Journal of South American Earth Sciences ,31 (4):414– 425,Bibcode :2011JSAES..31..414B ,doi :10.1016/j.jsames.2011.02.015 Collareta, Alberto; Lambert, Olivier; De Muizon, Christian; Urbina, Mario; Bianucci, Giovanni (2017),"Koristocetus pescei gen. et sp. nov., a diminutive sperm whale (Cetacea: Odontoceti: Kogiidae) from the late Miocene of Peru" ,Fossil Record ,20 (2):259– 278,Bibcode :2017FossR..20..259C ,doi :10.5194/fr-20-259-2017 ,hdl :11568/891486 , retrieved2019-02-12 Lambert, Olivier; Bianucci, Giovanni; Urbina, Mario; Geisler, Jonathan H. (2017), "A new inioid (Cetacea, Odontoceti, Delphinida) from the Miocene of Peru and the origin of modern dolphin and porpoise families",Zoological Journal of the Linnean Society ,179 (4):919– 946 Marx, Felix G.; Lambert, Olivier; De Muizon, Christian (2017),"A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids" ,Royal Society Open Science ,4 (9) 170560,Bibcode :2017RSOS....470560M ,doi :10.1098/rsos.170560 ,PMC 5627101 ,PMID 28989761 , retrieved2019-02-12 Marx, Felix G.; Kohno, Naoki (2016),"A new Miocene baleen whale from the Peruvian desert" ,Royal Society Open Science ,3 (10) 160542,Bibcode :2016RSOS....360542M ,doi :10.1098/rsos.160542 ,PMC 5098998 ,PMID 27853573 , retrieved2019-02-12 Poma Porras, Orlando; Horna Santillán, Edgard; Esperante, Raúl (2009),"Baleen Fósil (Cetacea: mysticeti) en Sedimentos de la Cuenca Marina del Neógeno en la Formación Pisco, al Sur del Perú" (PDF) ,Revista de Investigación Universitaria ,1 :84– 97, retrieved2017-09-04 Ramassamy, Benjamin; Lambert, Olivier; Collareta, Alberto; Urbina, Mario; Bianucci, Giovanni (2018),"Description of the skeleton of the fossil beaked whaleMessapicetus gregarius : searching potential proxies for deep-diving abilities" (PDF) ,Fossil Record ,21 (1):11– 32,Bibcode :2018FossR..21...11R ,doi :10.5194/fr-21-11-2018 , retrieved2019-02-11 Solís Mundaca, Flavio Alejandro (2018),Bioestratigrafía e implicancias paleoceanográficas de las diatomeas de la sección Cerro Caucato, Formación Pisco, Ica, Peru (MSc. thesis) (PDF) ,Universidad Peruana Cayetano Heredia , pp. 1– 158, retrieved2018-09-10 Stucchi, Marcelo; Emslie, Steven D.; Varas Malca, Rafael M.; Urbina Schmitt, Mario (2015a),"A new late Miocene condor (Aves, Cathartidae) from Peru and the origin of South American condors" ,Journal of Vertebrate Paleontology ,35 (5) e972507,Bibcode :2015JVPal..35E2507S ,doi :10.1080/02724634.2015.972507 , retrieved2019-02-13 Stucchi, Marcelo; Varas Malca, Rafael M.; Urbina Schmitt, Mario (2015b),"New Miocene sulid birds from Peru and considerations on their Neogene fossil record in the Eastern Pacific Ocean" (PDF) ,Acta Palaeontologica Polonica ,61 (2):417– 427, retrieved2019-02-13 Stucchi, M (2007),"Los pingüinos de la Formación Pisco (Neógeno), Perú" (PDF) ,4th European Meeting on the Palaeontology and Stratigraphy of Latin America, Cuadernos del Museo Geominero ,8 :367– 373, retrieved2017-09-04
Sedimentary basins of Peru
Onshore
Offshore