Stratigraphy and geologic history

Dengo, Carlos A.; Bundschuh, Jochen; Martens, Uwe; Alvarado, Guillermo E.; Aguilar, Teresita; Bonis, Samuel

doi:10.1201/9780203947043.ch13

Cited by 3 publications

(4 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present-day MCKB, developed within the Paleogene carbonates of the Buena Vista Formation, lies near the northern edge of the Mesozoic-Cenozoic North Petén sedimentary basin. As mapped by Dengo, the Petén Basin of Guatemala covers a region of 110,000 km 2 and is bounded by the Chiapas massif to the west, the Polochic Fault to the South, the Maya Mountains to the east, and thins to the north over the Yucatán Platform [ 71 ]. The basin initially developed in the Late Jurassic as a rift basin evolving during the Early Cretaceous into a shallow marine basin.…”

Section: Regional Settingmentioning

confidence: 99%

“…The La Libertad Arch separates the basin into the North Petén and South Petén sub-basins. More thorough descriptions of the structural history of northern Guatemala, the formation of the Petén Basin, and its stratigraphic fill have previously been published [ 6 , 67 , 71 – 73 ]. Exposed over much of the Guatemalan portion of the PP is the Buena Vista Formation, loosely correlative with the Icaiché Formation to the north.…”

Section: Regional Settingmentioning

confidence: 99%

See 1 more Smart Citation

Geomorphology of the Mirador-Calakmul Karst Basin: A GIS-based approach to hydrogeologic mapping

et al. 2021

View full text Add to dashboard Cite

This paper classifies the karst landscapes of the Petén Plateau and defines the Mirador-Calakmul Karst Basin by illustrating the distribution of its karst hydrologic features. Archaeological and spatial research of the Mirador-Calakmul area of Guatemala and Mexico has shown it to be a karst basin with geopolitical implications. Current research characterizes the karst landscapes of the Petén Plateau, maps the distribution of karst hydrologic features, and delineates the basin in geomorphological terms. To further this aim, multiple forms of remote sensing data including orthophotographs, a satellite Digital Elevation Model, satellite multispectral images, and Light Detection and Ranging (LiDAR) data have been integrated to interpret the karst features in the study area. Outcrop study and thin section analysis of the upper Buena Vista Formation document that the dominant lithologies are a shallow water algal boundstone interbedded with terrestrial caliche. Karst landforms have been mapped over the Petén Plateau and we identify five karst landscapes, the largest of which is a fluviokarst landscape dominated by karst valleys. We further map karst hydrologic features including seasonal swamps, dolines, intermittent lakes, intermittent streams, solution-enhanced fractures, and springs all of which are characteristic of drainage basins. Boundaries of the karst basin are mapped from multiple lines of evidence including distribution of the karst valleys, a line of springs along the western boundary of the fluviokarst landscape, and a surface drainage analysis. We capture and classify hydrologic data points and develop a regional groundwater map that indicates subsurface flow from east to west within the basin. A drainage map illustrates the extensive system of karst valleys, boundaries, and inferred groundwater flow paths of the Mirador-Calakmul Karst Basin. It was within this geomorphological setting that the ancient Maya developed an extensive civilization during the Middle and Late Preclassic periods (1000 BCE-150 CE).

show abstract

Section: Regional Settingmentioning

confidence: 99%

Section: Regional Settingmentioning

confidence: 99%

Geomorphology of the Mirador-Calakmul Karst Basin: A GIS-based approach to hydrogeologic mapping

et al. 2021

View full text Add to dashboard Cite

show abstract

“…A typical phenomenon observed in Costa Rica is that many closely related species pairs occur on the Caribbean and the Pacific sides (Kohlmann & Wilkinson 2007). This vicariant speciation pattern seems to be mediated by the slow emergence of the Talamanca range (Alvarado et al 2007, Hoernle et al 2008, which has divided the original continuous tropical forest into two separate areas; one on the Caribbean slope, the other on the Pacific slope (Kohlmann & Wilkinson 2007). This phenomenon has not been detected just in dung beetles (Kohlmann & Solís 1997, 2001a, 2001bKohlmann & Wilkinson 2007); many cases have also been reported for fishes, amphibians, reptiles, and birds (Fogden & Fogden 1997, Kohlmann & Wilkinson 2007.…”

Section: Taxonomic Considerationsmentioning

confidence: 99%

Checklist and distribution atlas of the Scarabaeinae (Coleoptera: Scarabaeidae) of Costa Rica

SOLÍS,

KOHLMANN

2012

Zootaxa

View full text Add to dashboard Cite

The 182 species of Scarabaeinae known to occur in Costa Rica are listed with synonymies included. We place Uroxys mac-rocularis Howden & Young as a synonym of U. boneti Pereira & Halffter (new synonym); we also place Uroxys depres-sifrons Howden & Young as a synonym of U. pauliani Balthasar (new synonym). We conducted a mitochondrial DNAcytochrome oxidase I barcoding analysis in order to clarify some taxonomic uncertainties with Phanaeus pyrois Bates andSulcophanaeus noctis (Bates). We elevate Phanaeus pyrois malyi Arnaud to Phanaeus malyi and revalidate Phanaeus ex-celsus Bates as valid species. We consider the species Dichotomius nevermanni Luederwaldt as incertae sedis. A CostaRican distribution map is provided for all species except Dichotomius costaricensis, which is only known from a countryrecord. We report, map, and estimate the spread of the invasive species Euoniticellus intermedius (Reiche) for Central America, from Chiapas to Costa Rica.

show abstract

“…Finally, it seems that the diversification of Ramiellona has occurred mainly in the mountains of Guatemala, El Salvador and the southern Mexican state of Chiapas, where volcanic activity has been constant since the early Oligocene, ca. 32 Ma ago (Alvarado et al 2007). How much of the isolation and differentiation between species and populations has been due to the orographic changes occurred during the formation of these mountain systems, is something that should be investigated in the next years.…”

Section: Introductionmentioning

confidence: 99%

New species and records of the earthworm genus Ramiellona (Annelida, Oligochaeta, Acanthodrilidae) from southern Mexico and Guatemala

Fragoso

Rojas

2014

Zootaxa

View full text Add to dashboard Cite

Three new species from the Mexican states of Tabasco and Chiapas are added to the acanthodrilid earthworm genus Ramiellona, R. microscolecina sp. nov., R. tojolabala sp. nov. and R. teapaensis sp. nov. They belong to a group of species with penial setae and last pair of hearts in segment 12. All are holandric and the spermathecae have either a flat circular diverticle in a segment anterior to that of the ampulla (R. microscolecina sp. nov. and R. tojolabala sp. nov.) or two ovoidal and sessile diverticles on opposite sides in the same segment of the ampulla (R. teapaensis sp. nov.). Ramiellona americana (Gates) is re-described from a single specimen from central Guatemala, and the diagnosis of Ramiellona lasiura (Graff) from El Salvador is emended after reinvestigating a paratype specimen from the Senckenberg Naturmuseum Frankfurt. On the basis of several individuals from different populations of the Mexican states of Chiapas and Tabasco, the morphological variation of Ramiellona strigosa setosa Righi is described and its relationship with the Guatemalan Ramiellona strigosa strigosa Gates and Ramiellona eiseni (Michaelsen) is discussed. Finally, the position of Ramiellona within Acanthodrilidae and its relation to genera of the doubtful Octochaetidae is discussed.

show abstract

Stratigraphy and geologic history

Cited by 3 publications

References 79 publications

Geomorphology of the Mirador-Calakmul Karst Basin: A GIS-based approach to hydrogeologic mapping

Geomorphology of the Mirador-Calakmul Karst Basin: A GIS-based approach to hydrogeologic mapping

Checklist and distribution atlas of the Scarabaeinae (Coleoptera: Scarabaeidae) of Costa Rica

New species and records of the earthworm genus Ramiellona (Annelida, Oligochaeta, Acanthodrilidae) from southern Mexico and Guatemala

Contact Info

Product

Resources

About