The Colombian geochronological database (CGD)

Rodriguez-Corcho, Andres Felipe; Rojas‐Agramonte, Yamirka; Barrera-Gonzalez, Johana A.; Marroquin-Gomez, Maria P.; Bonilla-Correa, Sarah; Izquierdo-Camacho, David; Delgado-Balaguera, Sofia M.; Cartwright-Buitrago, David; Muñoz-Granados, Maria D.; Carantón-Mateus, William G.; Corrales-García, Alejandro; Laverde-Martinez, Andrés F.; Cuervo-Gómez, Aura; Rodriguez-Ruiz, Marco A.; Marin-Jaramillo, Juan P.; Salazar-Cuellar, Nicole; Esquivel-Arenales, Laura C.; Daroca, Maria E.; Carvajal, A. Sofía; Perea-Pescador, Ana M.; Solano-Acosta, Juan D.; Díaz, S.J. Alonso; Guillen, Alejandro; Bayona, Germán; Cardona-Molina, Agustín; Eglington, B. M.; Montes, Camilo

doi:10.1080/00206814.2021.1954556

Cited by 4 publications

(4 citation statements)

References 154 publications

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“…Magmatic source, redox state, and the degree of magma fractionation, are petrogenetic factors that control the development of metal-fertile magmas leading to magmatic-hydrothermal mineral deposits 9 . Identification of traits in zircon sensitive to these factors may potentially be developed into exploration tools, however what is required is a better understanding of how the traits respond to different types of granite metallogeny.…”

Section: Metadata Extractionmentioning

confidence: 99%

“…As a result, real-time data collection, compilation, and updating have become essential for building geoscience databases for research purposes. Previous studies, such as AusGeochem [6], EarthChem [7], CZChemDB [8], and CGD [9], have proposed permanent repositories for geoscience database construction using open data sources. However, the collection and compilation of data from the geoscientific literature, which often consists of textual information, images, and structured tabular data, remains relatively unexplored.…”

Section: Introductionmentioning

confidence: 99%

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GeoKnowledgeFusion: A Platform for Multimodal Data Compilation from Geoscience Literature

Guo,

Wang,

Zhou

et al. 2024

Remote Sensing

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With the advent of big data science, the field of geoscience has undergone a paradigm shift toward data-driven scientific discovery. However, the abundance of geoscience data distributed across multiple sources poses significant challenges to researchers in terms of data compilation, which includes data collection, collation, and database construction. To streamline the data compilation process, we present GeoKnowledgeFusion, a publicly accessible platform for the fusion of text, visual, and tabular knowledge extracted from the geoscience literature. GeoKnowledgeFusion leverages a powerful network of models that provide a joint multimodal understanding of text, image, and tabular data, enabling researchers to efficiently curate and continuously update their databases. To demonstrate the practical applications of GeoKnowledgeFusion, we present two scenarios: the compilation of Sm-Nd isotope data for constructing a domain-specific database and geographic analysis, and the data extraction process for debris flow disasters. The data compilation process for these use cases encompasses various tasks, including PDF pre-processing, target element recognition, human-in-the-loop annotation, and joint multimodal knowledge understanding. The findings consistently reveal patterns that align with manually compiled data, thus affirming the credibility and dependability of our automated data processing tool. To date, GeoKnowledgeFusion has supported forty geoscience research teams within the program by processing over 40,000 documents uploaded by geoscientists.

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Section: Metadata Extractionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

GeoKnowledgeFusion: A Platform for Multimodal Data Compilation from Geoscience Literature

Guo,

Wang,

Zhou

et al. 2024

Remote Sensing

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“…Regional tectonic and geological setting of the northern Andes, showing the main sedimentary basins discussed in the text, and the north‐Andean exposures of Meso‐Neoproterozoic, Permian–Triassic, and Jurassic basement rocks (modified from Gómez‐Tapias et al, 2017). Some reported zircon U–Pb ages of the potential sources (e.g., orogenic massifs) for the here‐studied Aptian‐Albian sediments are also included (Rodriguez‐Corcho et al, 2022 and references therein). EFS, East Andean Fault System; RFS, Romeral Fault System (Cretaceous‐Palaeocene suture between the pre‐Cretaceous continental paleomargin and accreted rocks of the Caribbean Large Igneous Province; Villagómez & Spikings, 2013).…”

Section: Tectonic and Geological Settingmentioning

confidence: 99%

Sediment provenance signal of the discontinuous retroarc topography in the northern Andes during the Early Cretaceous

León,

Jiménez‐Rodríguez,

Piraquive

et al. 2023

Terra Nova

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A large dataset of detrital zircon U–Pb ages (N = 5940) of Aptian‐Albian strata of the Colombian‐Ecuadorian retroarc region suggests that these rocks were sourced from Proterozoic cratonic and Permian–Triassic to Cretaceous rocks of the Andean proto‐Cordilleras. The nonconformity between Aptian‐Albian strata and Proterozoic rocks of the Garzón Massif indicates the existence of positive relief in this region. Topographic highs could have caused local basin compartmentalization and the prevalence of a localized provenance of coeval strata. Areas of positive relief were seemingly exposed to intense chemical weathering as suggested by the high Chemical Index of Alteration values, and low Rb/Sr and SiO2/Al2O3 ratios of analysed strata. Our results highlight the value of provenance analysis to study the ancient topography of retroarc systems and open the avenue for further research on the role of extensional tectonics in the topographic and basin evolution in the Andes.

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“…Geochronological databases (U-Pb in zircons) derived from continental crust contain age spectra that cover almost all of Earth's history (e.g. Condie et al, 2009;Domeier et al, 2018;Rodriguez-Corcho et al, 2022;Wu et al, 2023), whereas oceanic crusts tend to only contain zircons in a narrow age spectrum that coincides with the magmatic age of the crust (e.g. Lissenberg et al, 2009;Rioux et al, 2016).…”

Section: Agu Word Manuscript Templatementioning

confidence: 99%

Zircon xenocrysts from Easter Island (Rapa Nui) reveal hotspot activity since the middle Jurassic

Rojas-Agramonte,

Pardo,

Hinsbergen

et al. 2023

Preprint

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The 0–2.5 Ma volcanism in Easter Island (Rapa Nui) emerges just east of the East Pacific Rise on young (Pliocene, 3–4.8 Ma) ocean floor. Here, we report the finding of mantle-derived zircon grains retrieved from Easter Island beach sands and red soils that are much older than the Easter Island volcanism and its underlying lithosphere. A large population of 0–165 Myr old zircons have coherent oxygen (δ18O(zircon) 3.8– 5.9‰) and hafnium mantle isotopic signatures (εHf(t) +3.5–+12.5). These results are consistent with the crystallization of zircon from plume-related melts. In addition, a chemically diverse population with ages as old as Precambrian was also found. We thus suggest that the Easter hotspot started at least ~165 Ma ago. A large population of ~160-164 Ma zircons could signal an intense initial massive melting phase associated with the formation of a Large Igneous Province (LIP) upon the first arrival of the plume. We use plate reconstructions to show that such a LIP would have formed on the Phoenix Plate. It would have subducted below the Antarctic Peninsula around 100-105 Ma, offering a solution for the enigmatic Palmer Land deformation event, previously proposed to result from a collision with an unknown indenter. Our findings show that asthenospheric mantle-derived xenocryst zircon cargo, as recently reported from Galápagos, may not be an exception. The here-reported “ghost” of a prolonged hotspot activity suggests that the Easter hotspot and the sub-lithospheric mantle in which it is entrained remained mantle-stationary for at least 165 Ma.

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The Colombian geochronological database (CGD)

Cited by 4 publications

References 154 publications

GeoKnowledgeFusion: A Platform for Multimodal Data Compilation from Geoscience Literature

GeoKnowledgeFusion: A Platform for Multimodal Data Compilation from Geoscience Literature

Sediment provenance signal of the discontinuous retroarc topography in the northern Andes during the Early Cretaceous

Zircon xenocrysts from Easter Island (Rapa Nui) reveal hotspot activity since the middle Jurassic

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