cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.zren2k
title: Occurrence Download

description: A dataset containing 5447 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Aralia elata (Miq.) Seem.",
 "HasCoordinate is true",
 "Year is greater than or equal to 1900",
 "BasisOfRecord is one of (Human Observation, Specimen, Unknown evidence)"
 ]
}

 The dataset includes 5447 records from 133 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0064352-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-39996
title: Things new and old, vol. 1, nos. 1-6, Apr. 1921 - Feb. 1922 (lacks no. 2, June 1921)

description: [description english/roman)] Issued bimonthly (every other month). "A pentecostal and missionary paper, published as funds permit". This exemplar lacks vol. 1, no. 2 (June 1921). Bound with Things new and old, vols. 2-4 and The pentecostal witness, nos. 1-2.
DOI: 10.15468/dl.zffh6h
title: Occurrence Download

description: A dataset containing 1081 species occurrences available in GBIF matching the query:
{
 "and" : [
 "OccurrenceStatus is Present",
 "TaxonKey is Onosma echioides (L.) L."
 ]
}

 The dataset includes 1081 records from 92 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0189409-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hf7qoz
title: Occurrence Download

description: A dataset containing 1373336 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Solanaceae",
 "DecimalLatitude is less than 90",
 "DecimalLatitude is greater than -90",
 "DecimalLongitude is less than 180",
 "DecimalLongitude is greater than -180"
 ]
}

 The dataset includes 1373336 records from 1690 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0050346-191105090559680/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.28331773
title: An optional formula for calculating crustal thickness using Sr/Y ratio and its application to the southeastern margin of the Central Asian Orogenic Belt

description: Though tracking changes in crustal thickness during orogenic evolution with specific element ratios has been proven effective, available empirical formulas sometimes yield unreasonable results. In this study, we proposed a new formula for calculating the crustal thickness by the Sr/Y ratio. Global lower crust-derived magmatic rock (younger than 23 Ma) data from diverse geological settings were selected and filtered using key geochemical criteria, alternating and iteratively using K-means clustering algorithm and improved Thompson tau method to exclude outliers. Curve fitting between the filtered elemental ratios and crustal thickness showed that the formula derived from maximum Sr/Y is best fitted by quadratic fitting. The rmse value between the calculated crustal thickness using the new Sr/Y formula and the true values worldwide is 14.84, lower than those of previous formulas ranging from 19.15 to 32.77. It is shown that our new formula possibly performs better for revealing temporal variations of Paleozoic crustal thickness at the southeastern margin of the Central Asian Orogenic Belt. During the Early Paleozoic Era, the crustal thickness of the Bainaimiao arc increased, corresponding to the subduction of the Southern Bainaimiao Ocean. In the Devonian, the crust in the Bainaimiao arc and northern North China Craton both continued thinning, implying for a post-collisional setting after the amalgamation between these two blocks. Crustal thickness in northern North China experienced transition from thickening to thinning, revealing a subduction-related convergent setting in the Carboniferous and an extensional setting due to slab roll-back in the Early Permian. The crustal thickness rapidly increased in the Late Permian and decreased in the Triassic, consistent with syn-collisional and post-collisional settings, respectively, associated with final closure of the Paleo-Asian Ocean. These results demonstrated that crustal thickness evolution of an orogen can be depicted in detail by our new formula and can put more insights into the understanding the complex histories of accretionary orogenic belts.
DOI: 10.6084/m9.figshare.28331773.v1
title: An optional formula for calculating crustal thickness using Sr/Y ratio and its application to the southeastern margin of the Central Asian Orogenic Belt

description: Though tracking changes in crustal thickness during orogenic evolution with specific element ratios has been proven effective, available empirical formulas sometimes yield unreasonable results. In this study, we proposed a new formula for calculating the crustal thickness by the Sr/Y ratio. Global lower crust-derived magmatic rock (younger than 23 Ma) data from diverse geological settings were selected and filtered using key geochemical criteria, alternating and iteratively using K-means clustering algorithm and improved Thompson tau method to exclude outliers. Curve fitting between the filtered elemental ratios and crustal thickness showed that the formula derived from maximum Sr/Y is best fitted by quadratic fitting. The rmse value between the calculated crustal thickness using the new Sr/Y formula and the true values worldwide is 14.84, lower than those of previous formulas ranging from 19.15 to 32.77. It is shown that our new formula possibly performs better for revealing temporal variations of Paleozoic crustal thickness at the southeastern margin of the Central Asian Orogenic Belt. During the Early Paleozoic Era, the crustal thickness of the Bainaimiao arc increased, corresponding to the subduction of the Southern Bainaimiao Ocean. In the Devonian, the crust in the Bainaimiao arc and northern North China Craton both continued thinning, implying for a post-collisional setting after the amalgamation between these two blocks. Crustal thickness in northern North China experienced transition from thickening to thinning, revealing a subduction-related convergent setting in the Carboniferous and an extensional setting due to slab roll-back in the Early Permian. The crustal thickness rapidly increased in the Late Permian and decreased in the Triassic, consistent with syn-collisional and post-collisional settings, respectively, associated with final closure of the Paleo-Asian Ocean. These results demonstrated that crustal thickness evolution of an orogen can be depicted in detail by our new formula and can put more insights into the understanding the complex histories of accretionary orogenic belts.
DOI: 10.6084/m9.figshare.28375406
title: Detrital zircon U–Pb geochronology of the Murree Formation, western Himalaya, Pakistan: provenance and tectonic implications for Himalayan exhumation

description: The Murree Formation is the oldest continental sequence in the Himalayan foreland basin and holds significant information about the Himalayan exhumation following the India-Asia collision. This study explains the provenance of the Murree Formation using detrital zircon U-Pb geochronology supplemented with sandstone petrography to unravel the Himalayan exhumation in Pakistan. The sandstone provenance indicates the sediment was sourced from recycled orogen and suture belts, supporting a post-collisional origin. The source rocks, shown by the ternary plot (QpQnuQu), comprise plutonic and medium to high-rank metamorphic rocks prevalent in the Higher Himalaya (HH), Tethyan Himalayan (TH), and Lesser Himalaya (LH). The zircon ages are mainly ~ 1200–400 Ma, with two minor clusters (~1900–1400 Ma and ~ 2600–2300 Ma). This pattern is compatible with a Himalayan source mainly from the TH, HH, and partly from LH. Notably, the age populations &lt; 200 Ma are in minor percentages, which indicates the hindrance from the Kohistan – Ladakh Arc (KLA) (Asian source) to the foreland basin due to the uplift of the TH and HH blocks. Combining the petrography and zircon U – Pb geochronology, a tectonic model is proposed, which suggests fold – thrust belt propagation to the south after the India – Asia collision. During the deposition of the Murree Formation in the foreland basin, TH and HH blocks were already uplifted in the western Himalaya, which provided major detritus. Along with this significant contribution, a minor contribution from a part of the LH is also suggested. This suggestion is based on the presence of Cambro – Ordovician detrital zircon ages, mainly from the plutonic source indicative of erosion of the Cambro – Ordovician granites and metamorphic rocks due to the initial phase of uplift along the Panjal fault.
DOI: 10.6084/m9.figshare.28375406.v1
title: Detrital zircon U–Pb geochronology of the Murree Formation, western Himalaya, Pakistan: provenance and tectonic implications for Himalayan exhumation

description: The Murree Formation is the oldest continental sequence in the Himalayan foreland basin and holds significant information about the Himalayan exhumation following the India-Asia collision. This study explains the provenance of the Murree Formation using detrital zircon U-Pb geochronology supplemented with sandstone petrography to unravel the Himalayan exhumation in Pakistan. The sandstone provenance indicates the sediment was sourced from recycled orogen and suture belts, supporting a post-collisional origin. The source rocks, shown by the ternary plot (QpQnuQu), comprise plutonic and medium to high-rank metamorphic rocks prevalent in the Higher Himalaya (HH), Tethyan Himalayan (TH), and Lesser Himalaya (LH). The zircon ages are mainly ~ 1200–400 Ma, with two minor clusters (~1900–1400 Ma and ~ 2600–2300 Ma). This pattern is compatible with a Himalayan source mainly from the TH, HH, and partly from LH. Notably, the age populations &lt; 200 Ma are in minor percentages, which indicates the hindrance from the Kohistan – Ladakh Arc (KLA) (Asian source) to the foreland basin due to the uplift of the TH and HH blocks. Combining the petrography and zircon U – Pb geochronology, a tectonic model is proposed, which suggests fold – thrust belt propagation to the south after the India – Asia collision. During the deposition of the Murree Formation in the foreland basin, TH and HH blocks were already uplifted in the western Himalaya, which provided major detritus. Along with this significant contribution, a minor contribution from a part of the LH is also suggested. This suggestion is based on the presence of Cambro – Ordovician detrital zircon ages, mainly from the plutonic source indicative of erosion of the Cambro – Ordovician granites and metamorphic rocks due to the initial phase of uplift along the Panjal fault.
DOI: 10.6084/m9.figshare.28348316.v1
title: Paleogeographic evolution of the western Taebaeksan Basin, Korea: constraints from provenance of late Carboniferous sediments

description: A distinctive unconformity between Cambro-Ordovician and Permo-Carboniferous strata in North China and the Taebaeksan Basin (TB) in Korea has been regarded as key evidence supporting their tectonic affinity (the ‘Sino-Korean Block’). However, controversy continues over the palaeogeographic position of the western part of the TB prior to the North and South China collision. To resolve this issue, we focus on the basal units of the upper Palaeozoic sequence overlying the Cambro-Ordovician strata. Results show that these late Carboniferous sediments, the Gapsan and Yobong formations in the western TB and the Manhang Formation in the eastern TB are all highly similar in composition, suggesting a common provenance: sandstones mostly consist of quartz and (meta)sedimentary rock fragments and are virtually devoid of feldspar; mudrocks are extremely depleted in CaO and Na<sub>2</sub>O, while elemental ratios of immobile trace elements including rare earths are comparable to the recycled upper continental crust; detrital zircon ages are highly concentrated at 1.8–1.9 Ga and 310–340 Ma, whereas Meso- to Neoproterozoic ages are scarce. Coupled with the clear similarities in lithology, the collected data are in favour of the palaeogeographic views that the western and eastern TB were contiguous by the late Carboniferous.
DOI: 10.6084/m9.figshare.28397199
title: Rifting dismantling an orogenic belt: the interplay between polyphase extensional structures and magmatism in the northern Tyrrhenian Sea (Elba Island, inner Northern Apennines, Italy)

description: The rapid transition from thick to over-thinned continental crust under an orogenic belt is a fascinating process that also characterizes the Neogene evolution of the Northern Apennines, an Alpine belt formed during the Cretaceous-Early Miocene by the convergence and collision between Africa (Adria microplate) and Europe (Sardinian-Corsican Massif). Since the Miocene, the inner Northern Apennines have been affected by extensional tectonics, resulting in a current crustal and lithospheric thickness of about 25 and 45 km, respectively. The clearest evidence of this process is the opening of the Northern Tyrrhenian Basin over the former suture zone. Therefore, in this paper we focus on the interplay between the evolution of extensional structures and magmatism on the Elba Island, which is a key area in this context due to its exposures and geographic location. We have integrated existing field data into a new view that offers a different interpretation of the reflection seismic lines acquired in the surroundings of the Elba Island. Five extensional events have been defined as having developed during the Aquitanian-Zanclean period, albeit within a continuous process in which normal and transfer faults were simultaneously active. We describe the occurrence of Burdigalian-Tortonian shear zones developed during the formation of the Corsica Basin, which were exhumed and rotated to the west. Their exhumation was triggered by Tortonian magmatism, which determined the doming of the shear zones. The eastward ongoing extensional tectonics generated new shear zones, which in turn were deformed into a dome-shaped geometry during the emplacement of the new Monte Capanne and Porto Azzurro plutons, in the late Miocene. The progressive deformation created normal faults that formed grabens or semigrabens in the Pliocene, which are now well exposed in Tuscany and characterize the Tyrrhenian Basin. The coeval NE-trending transfer fault zones played the role of channelling magma volumes and overcoming inhomogeneities in the continental crust, subject to stretching. The doming of extensional shear zones simulate illusory reverse kinematics, reason why the tectonic context of the Northern Tyrrhenian Basin and the inner Northern Apennines is debated. Extension and magmatism favour uplift, exhumation and doming of unroofing faults.Dome-shaped detachment surfaces are inefficient, in terms of tectonic activity.Multiple fault generations shortly develop if magmatism and extension are coeval.Westward-rotated normal faults simulate illusive reverse kinematics. Extension and magmatism favour uplift, exhumation and doming of unroofing faults. Dome-shaped detachment surfaces are inefficient, in terms of tectonic activity. Multiple fault generations shortly develop if magmatism and extension are coeval. Westward-rotated normal faults simulate illusive reverse kinematics.
DOI: 10.6084/m9.figshare.28348316
title: Paleogeographic evolution of the western Taebaeksan Basin, Korea: constraints from provenance of late Carboniferous sediments

description: A distinctive unconformity between Cambro-Ordovician and Permo-Carboniferous strata in North China and the Taebaeksan Basin (TB) in Korea has been regarded as key evidence supporting their tectonic affinity (the ‘Sino-Korean Block’). However, controversy continues over the palaeogeographic position of the western part of the TB prior to the North and South China collision. To resolve this issue, we focus on the basal units of the upper Palaeozoic sequence overlying the Cambro-Ordovician strata. Results show that these late Carboniferous sediments, the Gapsan and Yobong formations in the western TB and the Manhang Formation in the eastern TB are all highly similar in composition, suggesting a common provenance: sandstones mostly consist of quartz and (meta)sedimentary rock fragments and are virtually devoid of feldspar; mudrocks are extremely depleted in CaO and Na<sub>2</sub>O, while elemental ratios of immobile trace elements including rare earths are comparable to the recycled upper continental crust; detrital zircon ages are highly concentrated at 1.8–1.9 Ga and 310–340 Ma, whereas Meso- to Neoproterozoic ages are scarce. Coupled with the clear similarities in lithology, the collected data are in favour of the palaeogeographic views that the western and eastern TB were contiguous by the late Carboniferous.
DOI: 10.6084/m9.figshare.28397199.v1
title: Rifting dismantling an orogenic belt: the interplay between polyphase extensional structures and magmatism in the northern Tyrrhenian Sea (Elba Island, inner Northern Apennines, Italy)

description: The rapid transition from thick to over-thinned continental crust under an orogenic belt is a fascinating process that also characterizes the Neogene evolution of the Northern Apennines, an Alpine belt formed during the Cretaceous-Early Miocene by the convergence and collision between Africa (Adria microplate) and Europe (Sardinian-Corsican Massif). Since the Miocene, the inner Northern Apennines have been affected by extensional tectonics, resulting in a current crustal and lithospheric thickness of about 25 and 45 km, respectively. The clearest evidence of this process is the opening of the Northern Tyrrhenian Basin over the former suture zone. Therefore, in this paper we focus on the interplay between the evolution of extensional structures and magmatism on the Elba Island, which is a key area in this context due to its exposures and geographic location. We have integrated existing field data into a new view that offers a different interpretation of the reflection seismic lines acquired in the surroundings of the Elba Island. Five extensional events have been defined as having developed during the Aquitanian-Zanclean period, albeit within a continuous process in which normal and transfer faults were simultaneously active. We describe the occurrence of Burdigalian-Tortonian shear zones developed during the formation of the Corsica Basin, which were exhumed and rotated to the west. Their exhumation was triggered by Tortonian magmatism, which determined the doming of the shear zones. The eastward ongoing extensional tectonics generated new shear zones, which in turn were deformed into a dome-shaped geometry during the emplacement of the new Monte Capanne and Porto Azzurro plutons, in the late Miocene. The progressive deformation created normal faults that formed grabens or semigrabens in the Pliocene, which are now well exposed in Tuscany and characterize the Tyrrhenian Basin. The coeval NE-trending transfer fault zones played the role of channelling magma volumes and overcoming inhomogeneities in the continental crust, subject to stretching. The doming of extensional shear zones simulate illusory reverse kinematics, reason why the tectonic context of the Northern Tyrrhenian Basin and the inner Northern Apennines is debated. Extension and magmatism favour uplift, exhumation and doming of unroofing faults.Dome-shaped detachment surfaces are inefficient, in terms of tectonic activity.Multiple fault generations shortly develop if magmatism and extension are coeval.Westward-rotated normal faults simulate illusive reverse kinematics. Extension and magmatism favour uplift, exhumation and doming of unroofing faults. Dome-shaped detachment surfaces are inefficient, in terms of tectonic activity. Multiple fault generations shortly develop if magmatism and extension are coeval. Westward-rotated normal faults simulate illusive reverse kinematics.
DOI: 10.6084/m9.figshare.28407532
title: The triple orogenic junction of central Gondwana

description: The Neoproterozoic tectonic evolution of central Gondwana involved three successive continental collisions, associated with the East African Orogeny (late Cryogenian), the Kirwan Orogeny (early Ediacaran), and the Kuunga Orogeny (late Ediacaran). The interactions between these orogenies produced extensive reactivation of Archean to Mesoproterozoic basement rocks, as well as deformation and metamorphism in the Neoproterozoic cover sequences. To unravel the geological history of central Gondwana, we compiled zircon and monazite U-Pb ages (from igneous, detrital, and metamorphic rock samples), Sm-Nd and Lu-Hf isotope data, and thermobarometric P-T peak estimates from 19 tectonic terranes. The dataset, which encompasses the regions of eastern Africa, southern India, central-southern Madagascar, Sri Lanka, and East Antarctica, enables us to reconstruct the history of these three orogenies. The analysis of 2208 concordant U-Pb metamorphic zircon ages, ranging from 700 to 450 Ma, indicates that a peak metamorphic event occurred at ~ 550 Ma. Our dataset allows us to identify records of similar tectonic events amongst different terranes, thus demonstrating correlations between the multiple terranes of central Gondwana. A reassessment of previous tectonic reconstructions is discussed based on geochronological and isotopic data from a potentially contiguous province named TNASH (Trivandrum and Nagercoil terranes in southern India, Androyen and Anosyen terranes in southwestern Madagascar, Skallevikshalsen terrane in East Antarctica, and Highland Province in Sri Lanka). These Paleoproterozoic terranes exhibit comparable U-Pb igneous ages, isotopic signatures (Lu-Hf and Sm-Nd), and metamorphic conditions. Our study provides an extensive review into the complex tectonic history of central Gondwana, and a better understanding of the strengths and limitations of previous hypotheses. We present a compilation of U-Pb ages and isotopic data from 19 central Gondwana terranes.Our dataset includes 2208 metamorphic concordant U-Pb zircon and monazite ages (700–450 Ma).The data allow us to characterize the Kirwan Orogeny.Alternative hypotheses for the Neoproterozoic assembly of central Gondwana are reviewed. We present a compilation of U-Pb ages and isotopic data from 19 central Gondwana terranes. Our dataset includes 2208 metamorphic concordant U-Pb zircon and monazite ages (700–450 Ma). The data allow us to characterize the Kirwan Orogeny. Alternative hypotheses for the Neoproterozoic assembly of central Gondwana are reviewed.