cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.crf79u
title: Occurrence Download

description: A dataset containing 43 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is CERMES Barbados Lionfish Sightings 2012"
 ]
}

 The dataset includes 43 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0142928-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111157294
title: Record (obv.: list of oil jars; rev.: oil[?] owed by individuals), KTU 4.381

description: [Text or Publication Number Note:] KTU 4.381, KTU2 4.381, KTU3 4.381, CTU 4.381, CAT 4.381 ❧ [Excavation Description:] Found during excavations at Ras Shamra. ❧ [Medium:] Clay ❧ [Script Note:] Alphabetic Cuneiform ❧
DOI: 10.25549/inscriptifact-ouc111109770
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.15468/dl.6tqtza
title: Occurrence Download

description: A dataset containing 773269 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Rubus idaeus L., Rubus saxatilis L., Rumex acetosella L., Rumex scutatus L.)",
 "Geometry POLYGON((-9.36035 44.71551,-10.59082 42.81152,-11.82129 36.80928,-7.69043 36.17336,-3.38379 35.88905,3.12012 38.13456,9.18457 38.20366,11.7334 37.16032,12.78809 34.74161,17.09473 33.79741, 23.15918 34.23451,30.10254 32.62087,33.2666 32.99024,35.72754 35.03,33.00293 35.53223,28.69629 35.17381,28.34473 36.31513,25.7959 37.50973,24.91699 39.90974,28.78418 40.6473,30.71777 41.17865,36.87012 45.213,38.18848 46.98025,38.71582 47.7541,39.94629 47.93107,40.20996 49.61071,37.0459 50.34546,35.72754 50.40152,33.79395 52.26816,31.68457 51.94426,31.4209 53.27835,32.56348 53.43572,30.98145 54.77535,30.89355 55.52863,28.43262 56.02295,27.20215 57.65716,27.37793 58.30949,27.90527 59.17593,29.66309 59.88894,27.6416 60.58697,31.50879 62.75473,28.78418 69.83962,30.89355 70.28912,29.22363 71.55274,21.75293 71.30079,14.28223 70.14036,11.38184 67.47492,4.87793 63.66576,-5.53711 71.52491,-10.63477 71.69129,-21.5332 67.74276,-28.56445 65.36684,-24.3457 61.35461,-9.36035 44.71551))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "Year is less than or equal to 2021"
 ]
}

 The dataset includes 773269 records from 792 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0159444-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111109818
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.25549/inscriptifact-ouc111109648
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.15468/dl.pspiyg
title: Occurrence Download

description: A dataset containing 1448 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Geonoma orbignyana Mart."
 ]
}

 The dataset includes 1448 records from 53 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009314-190320150433242/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111110064
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.25549/inscriptifact-ouc111110540
title: Temple administrative record, UT 1599-5

description: [Text Description:] Temple administrative record of a tax list, sheep and lambs. ❧ [Text or Publication Number Note:] UT 1599-5 ❧ [Excavation Description:] Drehem ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Small clay tablet, pinkish-orange color. LABEL: "1599" in black ink, "5" in red ink; color-matched paint over pre-existing number? Broken and repaired. 4 x 3.5cm. ❧ [Physical Object Note:] Reign of Shulgi, second dynastic king.
DOI: 10.15468/dl.u7u9uw
title: Occurrence Download

description: A dataset containing 429 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Geothlypis flavovelata Ridgway, 1896"
 ]
}

 The dataset includes 429 records from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0142929-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111109953
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.25549/inscriptifact-ouc111110069
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.15468/dl.55zz5b
title: Occurrence Download

description: A dataset listing the 1 species recorded in GBIF matching the query:
{
 "TaxonKey" : [
 "is Geothlypis flavovelata Ridgway, 1896"
 ]
}

 The dataset's 1 records were derived from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0142937-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111110021
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.25549/inscriptifact-ouc111353030
title: List of towns, obverse, individuals and trades/professions, reverse, with quantities of silver, KTU 4.610

description: [Text Description:] Ugaritic Tablet KTU 4.610 ❧ [Text or Publication Number Note:] KTU 4.610; KTU2 4.610; KTU3 4.610; CTU 4.610; CAT 4.610; RS 19.017; DO 5004 ❧ [Excavation Description:] Found during excavations at Ras Shamra. ❧ [Medium:] Clay ❧ [Script Note:] Alphabetic Cuneiform
DOI: 10.25549/inscriptifact-ouc111108136
title: Temple administration record, UT 1599-1

description: [Text Description:] Temple administrative record of receipts and disbursements of food rations. ❧ [Text or Publication Number Note:] UT 1599-1 ❧ [Excavation Description:] Drehem ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Large rectangular clay tablet, orange-red color. 15.5 x 13.5cm. ❧ [Physical Object Note:] Reign of Shu-Sin, fourth dynastic king.
DOI: 10.15468/dl.z543gx
title: Occurrence Download

description: A dataset containing 307 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is South Africa",
 "TaxonKey is Prosopis L."
 ]
}

 The dataset includes 307 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021712-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111108106
title: Temple administration record, UT 1599-1

description: [Text Description:] Temple administrative record of receipts and disbursements of food rations. ❧ [Text or Publication Number Note:] UT 1599-1 ❧ [Excavation Description:] Drehem ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Large rectangular clay tablet, orange-red color. 15.5 x 13.5cm. ❧ [Physical Object Note:] Reign of Shu-Sin, fourth dynastic king.
DOI: 10.25549/inscriptifact-ouc111107783
title: Temple administration record, UT 1599-1

description: [Text Description:] Temple administrative record of receipts and disbursements of food rations. ❧ [Text or Publication Number Note:] UT 1599-1 ❧ [Excavation Description:] Drehem ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Large rectangular clay tablet, orange-red color. 15.5 x 13.5cm. ❧ [Physical Object Note:] Reign of Shu-Sin, fourth dynastic king.
DOI: 10.15468/dl.64wre7
title: Occurrence Download

description: A dataset containing 51 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Philippines",
 "TaxonKey is Ardisia elliptica Thunb."
 ]
}

 The dataset includes 51 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0193913-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111107785
title: Temple administration record, UT 1599-1

description: [Text Description:] Temple administrative record of receipts and disbursements of food rations. ❧ [Text or Publication Number Note:] UT 1599-1 ❧ [Excavation Description:] Drehem ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Large rectangular clay tablet, orange-red color. 15.5 x 13.5cm. ❧ [Physical Object Note:] Reign of Shu-Sin, fourth dynastic king.
DOI: 10.25549/inscriptifact-ouc111107809
title: Temple administration record, UT 1599-1

description: [Text Description:] Temple administrative record of receipts and disbursements of food rations. ❧ [Text or Publication Number Note:] UT 1599-1 ❧ [Excavation Description:] Drehem ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Large rectangular clay tablet, orange-red color. 15.5 x 13.5cm. ❧ [Physical Object Note:] Reign of Shu-Sin, fourth dynastic king.
DOI: 10.15468/dl.x2tfcw
title: Occurrence Download

description: A dataset containing 158 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is South America",
 "Issue is Geodetic datum assumed WGS84",
 "TaxonKey is Bactris gasipaes Kunth"
 ]
}

 The dataset includes 158 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010276-200127171203522/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111353032
title: List of towns, obverse, individuals and trades/professions, reverse, with quantities of silver, KTU 4.610

description: [Text Description:] Ugaritic Tablet KTU 4.610 ❧ [Text or Publication Number Note:] KTU 4.610; KTU2 4.610; KTU3 4.610; CTU 4.610; CAT 4.610; RS 19.017; DO 5004 ❧ [Excavation Description:] Found during excavations at Ras Shamra. ❧ [Medium:] Clay ❧ [Script Note:] Alphabetic Cuneiform
DOI: 10.25549/inscriptifact-ouc111353075
title: List, persons grouped by place of residence, with numbers and indication of persons missing, KTU 4.611

description: [Text Description:] Ugaritic Tablet KTU 4.611 ❧ [Text or Publication Number Note:] KTU 4.611; KTU2 4.611; KTU3 4.611; CTU 4.611; CAT 4.611; RS 19.018; DO 5005 ❧ [Excavation Description:] Found during excavations at Ras Shamra. ❧ [Medium:] Clay ❧ [Script Note:] Alphabetic Cuneiform
DOI: 10.15468/dl.jesj12
title: Occurrence Download

description: A dataset containing 313 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Year 2000-2018",
 "TaxonKey is Neoromicia capensis (A.Smith, 1829)"
 ]
}

 The dataset includes 313 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020224-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111110024
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.15468/dl.24bvk8
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Acilepis anaimudica (B.V.Shetty & Vivek.) Kottaim."
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0028644-230810091245214/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111109991
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.25549/inscriptifact-ouc111110028
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.15468/dl.qsxcq5
title: Occurrence Download

description: A dataset containing 654 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((97.31689 24.67529,106.85303 20.01709,116.38916 21.99463,123.81592 27.83936,122.40967 33.85986,114.01611 33.59619,109.57764 33.72803,107.64404 33.59619,105.57861 34.38721,101.53564 32.40967,95.8667 27.97119,96.3501 25.77393,97.31689 24.67529))",
 "TaxonKey is Cupressus funebris Endl."
 ]
}

 The dataset includes 654 records from 21 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0189576-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111110116
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.25549/inscriptifact-ouc111109997
title: Votive, cone, UT 1599-4

description: [Text Description:] Votive, cone-shaped temple offering. ❧ [Text or Publication Number Note:] UT 1599-4 ❧ [Excavation Description:] Warka ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Beige clay cone, smaller of the two cones. LABEL: "4" in pencil; "P" in thick black marker. 2 x 5cm.
DOI: 10.15468/dl.vepnqw
title: Occurrence Download

description: A dataset containing 14706 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cydia pomonella (Linnaeus, 1758)"
 ]
}

 The dataset includes 14706 records from 188 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0142931-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.uz5zut
title: Occurrence Download

description: A dataset containing 2466 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Paeonia caucasica (Schipcz.) Schipcz., Paeonia clusii F.C.Stearn, Paeonia clusii subsp. clusii, Paeonia clusii subsp. rhodia (Stearn) Tzanoud., Paeonia corsica Sieber ex Tausch, Paeonia daurica Andrews, Paeonia mascula (L.) Mill., Paeonia mascula subsp. mascula, Paeonia mascula subsp. russoi (Biv.) Cullen & Heywood, Paeonia officinalis L.)",
 "BasisOfRecord is one of (Human Observation, Observation, Machine Observation)",
 "DatasetKey is one of (Pl@ntNet automatically identified occurrences, Pl@ntNet observations, iNaturalist Research-grade Observations, Observation.org, Nature data from around the World, naturgucker, Artportalen (Swedish Species Observation System), Norwegian Species Observation Service, Programme d'observation naturaliste participative avec l'application mobile INPN Espèces - Application INPN Espèces: Observations naturalistes, participatives et opportunistes, fondées sur des photographies, Species recordings from the Danish National portal Arter.dk, Lajitietokeskus/FinBIF - Notebook, general observations, Vascular plant records verified via iRecord, iRecord Surveys)",
 "Continent is Europe",
 "OccurrenceStatus is Present",
 "HasCoordinate is true",
 "CoordinateUncertaintyInMeters is less than or equal to 500",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 2000"
 ]
}

 The dataset includes 2466 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0070232-231120084113126/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zmw6t6
title: Occurrence Download

description: A dataset containing 70 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "TaxonKey is Althenia orientalis (Tzvelev) García-Mur. & Talavera"
 ]
}

 The dataset includes 70 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0125166-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fgzsm6
title: Occurrence Download

description: A dataset containing 115 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Ecuador",
 "HasCoordinate is true",
 "TaxonKey is Cedrela odorata L.",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 115 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032002-190415153152247/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.b4j877
title: Occurrence Download

description: A dataset containing 3 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Alchemilla oculimarina Pawl.",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 3 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0070235-231120084113126/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5zdf88
title: Occurrence Download

description: A dataset containing 7458074 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Diptera",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than 2000"
 ]
}

 The dataset includes 7458074 records from 1834 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0133358-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.b4rnj6
title: Occurrence Download

description: A dataset listing the 4165 species recorded in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((50.08205 23.80335,52.67673 23.80335,52.67673 27.37104,50.08205 27.37104,50.08205 23.80335))",
 "OccurrenceStatus is Present"
 ]
}

 The dataset's 4165 records were derived from 153 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001192-250310093411724/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17632/n95b5wk68f.1
title: "The impact of dividend policy on a company's market value" Levashov Ruslan

description: Master's thesis on the topic "The impact of dividend policy on a company's market value".
DOI: 10.17632/9cfxtx5fx5.1
title: dataset of A Critical Role of Lung Megakaryocytes in House Dust Mite-induced Asthmatic Inflammation and Remodeling

description: raw date of the paper
DOI: 10.6084/m9.figshare.28570271
title: AI DATA Prompt 1.xlsx

description: This is the result of applying 11 LLM models and one standard machine learning approach for classifying sentiment in abstracts with artificial intelligence themes from PubMed. 1 stands for positive, 0 for neutral and -1 for negative.
DOI: 10.17632/rg84zm4spg.1
title: Stable strontium isotopes as indicators of the origin of riverine sulfate

description: Chemical weathering of rocks plays a fundamental role in long-term climate control through its impact on atmospheric CO2. Carbonate weathering has a dual effect: weathering by carbonic acid is CO2-neutral, while reactions between carbonates and sulfuric acid release CO2 into the atmosphere-ocean system. The oxidative weathering of pyrite (OWP), as a primary source of sulfuric acid, is therefore an important process for the global carbon cycle, which requires quantitative estimation. However, tracing OWP-derived sulfate in rivers is challenging due to another prominent source of riverine sulfate: evaporites, such as gypsum and anhydrite. This study makes the first step toward testing stable isotopes of Sr (δ88/86Sr) as a new tool for distinguishing between different origins of riverine sulfate. The study contributes new stable Sr data for a set of rivers with small, lithologically homogeneous catchments in eastern France (δ88/86Sr ranges between 0.17‰ and 0.54‰), along with the data for natural evaporites of the Triassic age (0.39–0.54‰). A developed simple mixing-reaction model shows that 0–50% of the Sr in these rivers originates from gypsum. Applying this model to large rivers across the world suggests 0–70% of their Sr content comes from evaporites. Upscaling these results to the global riverine flux provides first-order quantitative estimates of the relative inputs of sulfate from different geological sources. Overall, the global contribution of sulfate from OWP is estimated to be 16–48%, with the corresponding global OWP-associated carbon flux of around 15 TgC/yr.