Intraformational unconformities as a record of late Miocene eustatic falls of sea level in the Pisco Formation (southern Peru)
Bibliographic Data
| ID | 16840652 |
|---|---|
| Authors | C Di Celma (0000-0001-7781-7981, Università di Camerino, corresponding author), E Malinverno (0000-0002-9124-5155, University of Milano-Bicocca), Giulio Bosio (0000-0001-8067-4926, University of Milano-Bicocca), Karen Gariboldi (0000-0002-7978-7496, University of Pisa), Alberto Collareta (0000-0002-6513-8882, University of Pisa), Anna Gioncada (0000-0002-8513-7377, University of Pisa), W Landini (0000-0001-7196-9888, University of Pisa), P P Pierantoni (0000-0002-1237-4689, Università di Camerino), Giovanni Bianucci (0000-0001-7105-0863, University of Pisa) |
| Year | 2018 |
| Volume | 14 |
| Issue | 2 |
| Pages | 607-619 |
| Publication date | 2018-11-13 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Journal of Maps (JOURNAL) |
| Journal identifiers | ISSN: 1744-5647 • E-ISSN: 1744-5647 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1080/17445647.2018.1517701 |
| OpenAlex | W2896313305 |
| Language | EN |
| Citations received | 4 |
| References cited | 61 |
Field mapping and sedimentological study of outcrop sections exposed along the Ica River valley permitted the establishment of a regional allostratigraphic framework for the upper Miocene portion of the Pisco Formation. The stratigraphy of the studied interval is illustrated using a new 1:20,000-scale geological map which reveals that this formation is a cyclical sedimentary succession composed of three fining-upward allomembers. The bounding surfaces defining each allomember are transgressively modified subaerial unconformities. They converge and merge landward into a single composite surface representing the time-transgressive lower boundary of the Pisco Formation. Accordingly, the extent of the stratigraphic gap associated with the basal unconformity varies significantly throughout the basin and increases toward the basin margins. The timing of allomember-bounding surfaces coincides with that of major oxygen-isotope maxima in the deep-sea oxygen isotopic record and matches the ages of eustatic sequence boundaries identified elsewhere, indicating glacio-eustatic falls due to the growth of Antarctica ice sheets as a viable mechanism for their development
Cretaceous · Facies · Geochemistry · Isotopes of oxygen · Marine transgression · Outcrop · Sea level · Sequence stratigraphy · Structural basin · Subaerial · Transgressive · Unconformity · Evolution and Paleontology Studies · Geological formations and processes · Geology and Paleoclimatology Research · Geology · Oceanography · Paleontology
Miocene stratigraphy and vertebrate paleontology along the western side of Cerros Cadena de los Zanjones (East Pisco Basin, Peru)
Allostratigraphy and paleontology of the lower Miocene Chilcatay Formation in the Zamaca area, East Pisco basin, southern Peru
Distribution and paleoenvironmental framework of middle Miocene marine vertebrates along the western side of the lower Ica Valley (East Pisco Basin, Peru)
Towards deciphering the Cenozoic evolution of the East Pisco Basin (southern Peru)
Distribution of fossil marine vertebrates in Cerro Colorado, the type locality of the giant raptorial sperm whale Livyatan melvillei (Miocene, Pisco Formation, Peru)
Stratigraphic framework of the late Miocene to Pliocene Pisco Formation at Cerro Colorado (Ica Desert, Peru)
Stratigraphic framework of the late Miocene Pisco Formation at Cerro Los Quesos (Ica Desert, Peru)
Fossil marine vertebrates of Cerro Los Quesos
Facies analysis, stratigraphy and marine vertebrate assemblage of the lower Miocene Chilcatay Formation at Ullujaya (Pisco basin, Peru)
Quaternary uplift of the peruvian coast related to the subduction of the Nazca Ridge
| Unique citing works | 4 |
|---|---|
| Citations per year | 0.57 |
| Citation span | 2019 - 2025 (7) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 4 |