The study of Dominican amber-bearing sediments from Siete Cañadas and La Cumbre with a discussion on their origin
Abstract The paper presents comprehensive mineralogical and geochemical characteristics of Dominican amber-bearing sediments from Siete Cañadas, Hato Mayor Province of the Eastern Mining District (EMD) in the Cordillera Oriental. The characteristics of rocks collected from the borehole in Siete Caña...
Guardado en:
| Autores principales: | , , , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/b4c7d9fc055642d19082ef3c001660c5 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:b4c7d9fc055642d19082ef3c001660c5 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:b4c7d9fc055642d19082ef3c001660c52021-12-02T17:25:44ZThe study of Dominican amber-bearing sediments from Siete Cañadas and La Cumbre with a discussion on their origin10.1038/s41598-021-96520-32045-2322https://doaj.org/article/b4c7d9fc055642d19082ef3c001660c52021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96520-3https://doaj.org/toc/2045-2322Abstract The paper presents comprehensive mineralogical and geochemical characteristics of Dominican amber-bearing sediments from Siete Cañadas, Hato Mayor Province of the Eastern Mining District (EMD) in the Cordillera Oriental. The characteristics of rocks collected from the borehole in Siete Cañadas area (EMD) were compared with petrography of coaly shales from La Cumbre in the Northern Mining District (NMD). The mineralogy of the rocks was determined using transmitted and reflected light microscopy, scanning electron microscopy, Powder X-ray diffraction and Fourier Transform Raman Spectroscopy. Biomarker analyses by the gas chromatography–mass spectrometry were used to trace the genetic source and transformation stage of organic matter hosted in the core sediments. In this study, the characteristics of rocks from La Cumbre were supplemented with the petrographic data from our studies reported earlier. Based on the findings, it has been concluded that the basins in the investigated parts of the EMD and NMD regions were likely characterized by different, isolated palaeosettings. Transformation and maturation of terrigenous material were affected by locally occurring physicochemical conditions. In both amber deposits, the sedimentation of clastic and organic material proceeded in the presence of marine conditions. In case of the La Cumbre deposit (NMD area), the sedimentation underwent probably in the conditions of the lagoon environment, a shallow maritime lake or periodically flooded plain that facilitated organic matter decomposition and carbonation from meta-lignite to sub-bituminous coal (random reflectance of coal—Rr o = 0.39%). In the Siete Cañadas (EMD region), the sedimentation took place in a shallow saltwater basin, where terrigenous material was likely mixed with material found in situ (fauna fossils, carbonate-group minerals) to form the mudstones enriched in bituminous substance of low maturity. The organic matter found in the rocks from both deposits is of mixed terrestrial/marine origin and was deposited in the presence of low oxygen concentration and reducing and/or dysoxic conditions.Paweł StachLucyna Natkaniec-NowakMagdalena Dumańska-SłowikPaweł KosakowskiBeata NaglikPrzemysław DrzewiczJacek MisiakJaroslav PršekCarlos GeorgeRamón Elías Ramírez GómezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-20 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Medicine R Science Q |
| spellingShingle |
Medicine R Science Q Paweł Stach Lucyna Natkaniec-Nowak Magdalena Dumańska-Słowik Paweł Kosakowski Beata Naglik Przemysław Drzewicz Jacek Misiak Jaroslav Pršek Carlos George Ramón Elías Ramírez Gómez The study of Dominican amber-bearing sediments from Siete Cañadas and La Cumbre with a discussion on their origin |
| description |
Abstract The paper presents comprehensive mineralogical and geochemical characteristics of Dominican amber-bearing sediments from Siete Cañadas, Hato Mayor Province of the Eastern Mining District (EMD) in the Cordillera Oriental. The characteristics of rocks collected from the borehole in Siete Cañadas area (EMD) were compared with petrography of coaly shales from La Cumbre in the Northern Mining District (NMD). The mineralogy of the rocks was determined using transmitted and reflected light microscopy, scanning electron microscopy, Powder X-ray diffraction and Fourier Transform Raman Spectroscopy. Biomarker analyses by the gas chromatography–mass spectrometry were used to trace the genetic source and transformation stage of organic matter hosted in the core sediments. In this study, the characteristics of rocks from La Cumbre were supplemented with the petrographic data from our studies reported earlier. Based on the findings, it has been concluded that the basins in the investigated parts of the EMD and NMD regions were likely characterized by different, isolated palaeosettings. Transformation and maturation of terrigenous material were affected by locally occurring physicochemical conditions. In both amber deposits, the sedimentation of clastic and organic material proceeded in the presence of marine conditions. In case of the La Cumbre deposit (NMD area), the sedimentation underwent probably in the conditions of the lagoon environment, a shallow maritime lake or periodically flooded plain that facilitated organic matter decomposition and carbonation from meta-lignite to sub-bituminous coal (random reflectance of coal—Rr o = 0.39%). In the Siete Cañadas (EMD region), the sedimentation took place in a shallow saltwater basin, where terrigenous material was likely mixed with material found in situ (fauna fossils, carbonate-group minerals) to form the mudstones enriched in bituminous substance of low maturity. The organic matter found in the rocks from both deposits is of mixed terrestrial/marine origin and was deposited in the presence of low oxygen concentration and reducing and/or dysoxic conditions. |
| format |
article |
| author |
Paweł Stach Lucyna Natkaniec-Nowak Magdalena Dumańska-Słowik Paweł Kosakowski Beata Naglik Przemysław Drzewicz Jacek Misiak Jaroslav Pršek Carlos George Ramón Elías Ramírez Gómez |
| author_facet |
Paweł Stach Lucyna Natkaniec-Nowak Magdalena Dumańska-Słowik Paweł Kosakowski Beata Naglik Przemysław Drzewicz Jacek Misiak Jaroslav Pršek Carlos George Ramón Elías Ramírez Gómez |
| author_sort |
Paweł Stach |
| title |
The study of Dominican amber-bearing sediments from Siete Cañadas and La Cumbre with a discussion on their origin |
| title_short |
The study of Dominican amber-bearing sediments from Siete Cañadas and La Cumbre with a discussion on their origin |
| title_full |
The study of Dominican amber-bearing sediments from Siete Cañadas and La Cumbre with a discussion on their origin |
| title_fullStr |
The study of Dominican amber-bearing sediments from Siete Cañadas and La Cumbre with a discussion on their origin |
| title_full_unstemmed |
The study of Dominican amber-bearing sediments from Siete Cañadas and La Cumbre with a discussion on their origin |
| title_sort |
study of dominican amber-bearing sediments from siete cañadas and la cumbre with a discussion on their origin |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/b4c7d9fc055642d19082ef3c001660c5 |
| work_keys_str_mv |
AT pawełstach thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT lucynanatkaniecnowak thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT magdalenadumanskasłowik thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT pawełkosakowski thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT beatanaglik thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT przemysławdrzewicz thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT jacekmisiak thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT jaroslavprsek thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT carlosgeorge thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT ramoneliasramirezgomez thestudyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT pawełstach studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT lucynanatkaniecnowak studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT magdalenadumanskasłowik studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT pawełkosakowski studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT beatanaglik studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT przemysławdrzewicz studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT jacekmisiak studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT jaroslavprsek studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT carlosgeorge studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin AT ramoneliasramirezgomez studyofdominicanamberbearingsedimentsfromsietecanadasandlacumbrewithadiscussionontheirorigin |
| _version_ |
1718380931027304448 |