IF 1 4区地球科学

Gff Pub Date : 2023-08-01 DOI: 10.1080/11035897.2023.2223579

A. Ernst, Z. Tolokonnikova

引用次数: 0

Late Paleoproterozoic deposition and Mesoproterozoic metamorphism of detrital material in the southernmost Baltic Sea region (Gdańsk IG1 borehole): monazite versus zircon and chemical versus isotopic age record 波罗的海最南部地区(Gdańsk IG1钻孔)晚古元古代沉积与中元古代变质作用:独居石与锆石、化学与同位素年龄记录

IF 1 4区地球科学

Gff Pub Date : 2023-06-15 DOI: 10.1080/11035897.2023.2205891

Dominik Gurba, Anna Grabarczyk-Gurba, E. Krzemińska

引用次数: 0

U-Pb baddeleyite age for the Ottfjället Dyke Swarm, central Scandinavian Caledonides: New constraints on Ediacaran opening of the Iapetus Ocean and glaciations on Baltica – a comment on the inferred age of Neoproterozoic glaciations 斯堪的纳维亚中部Caledonides Ottfjället堤群的U-Pb年龄:对伊迪亚卡拉纪Iapetus洋开放和波罗的海冰川作用的新限制——对新元古代冰川作用年龄推断的评论

IF 1 4区地球科学

Gff Pub Date : 2023-06-14 DOI: 10.1080/11035897.2023.2205893

A. Rice

引用次数: 3

Emendment to the term complex in: “Guide for geological nomenclature in Sweden” (Kumpulainen 2016) “瑞典地质命名指南”（Kumpulainen 2016）中对“复合体”一词的修订

IF 1 4区地球科学

Gff Pub Date : 2023-05-18 DOI: 10.1080/11035897.2023.2201321

U. Andersson, Nils Jansson, Linda M. Wickström, S. Bergman, R. Kumpulainen, M. Johnson, M. Olvmo, Stephen McLoughlin, M. Calner

引用次数: 0

Prehistory of an enigmatic mineral: hisingerite 一种神秘矿物的史前史：希闪长岩

IF 1 4区地球科学

Gff Pub Date : 2023-04-04 DOI: 10.1080/11035897.2023.2187079

D. Holtstam

引用次数: 0

Cobalt enrichment in some ores of the Bergslagen province, south central Sweden 瑞典中南部伯格斯拉根省部分矿石中的钴富集

IF 1 4区地球科学

Gff Pub Date : 2023-02-21 DOI: 10.1080/11035897.2023.2168046

E. Jonsson, K. Högdahl

{"title":"Cobalt enrichment in some ores of the Bergslagen province, south central Sweden","authors":"E. Jonsson, K. Högdahl","doi":"10.1080/11035897.2023.2168046","DOIUrl":"https://doi.org/10.1080/11035897.2023.2168046","url":null,"abstract":"ABSTRACT The presence of cobalt (Co) in sulphide deposits or sulphide-bearing iron oxide deposits in and around the Palaeoproterozoic Bergslagen ore province, south central Sweden, led to focused mining and extraction of this metal, particularly during the nineteenth century. Today, Co is considered a critical metal in the EU and among the more sought-after raw materials, not least due to its use in batteries for the rapidly increasing production of electric vehicles. Here we report new observations and data on Co concentrations in variably mineralised and not necessarily statistically representative samples from a suite of mainly skarn-hosted, at least locally, sulphide-dominated mineralisations from Bergslagen. While several localities that exhibit substantial Co concentrations represent deposits previously known to carry this metal (generally in a field/district or specifically in a mine), the majority are from mines or prospects in which the presence of Co have been hitherto unknown. Several of them share the enrichment of, e.g., Co and Cu, but the overall picture is one of more complex interrelations between the variable metal endowments in the known occurrences of Co in this province. While representing a modest dataset, our new observations complement previously available information on the occurrence of Co in Bergslagen and highlights both the need for, and potential of, new and more detailed studies on the distribution, mineralogy and origin of Co as well as other critical or near-critical metals in this and other ore provinces in Sweden.","PeriodicalId":55094,"journal":{"name":"Gff","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46238128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solstad, a Co-Se-bearing copper ore in the Västervik quartzites, Sweden 瑞典Västervik石英岩中的一种含钴硒铜矿石

IF 1 4区地球科学

Gff Pub Date : 2022-12-15 DOI: 10.1080/11035897.2022.2147214

K. Billström, J. Söderhielm, C. Broman, K. Sundblad

{"title":"Solstad, a Co-Se-bearing copper ore in the Västervik quartzites, Sweden","authors":"K. Billström, J. Söderhielm, C. Broman, K. Sundblad","doi":"10.1080/11035897.2022.2147214","DOIUrl":"https://doi.org/10.1080/11035897.2022.2147214","url":null,"abstract":"ABSTRACT\u0000 The Solstad copper deposit, located in SE Sweden, is hosted by a quartz-rich rock sliver surrounded by a granite belonging to the 1.8 Ga Transscandinavian Igneous Belt. Ore petrographic studies have revealed a number of previously unrecognized opaque phases, including several Co phases, selenides and tellurides. Based on an in situ U-Pb investigation of zircons from a mineralized sample, it is suggested that zircons have a detrital origin and that the quartz-rich host rock is a xenolith belonging to the c. 1.88–1.86 Ga Västervik quartzite formation. A low-radiogenic galena sample implies that the source for the metals in the ore has a primitive origin, probably the basaltic lavas (now amphibolites) that are intercalated in the Västervik quartzite. Fluid inclusion studies in quartz distinguish four distinct ore fluids: (1) a hypersaline halite-bearing aqueous fluid related to an early (1.85–1.86 Ga) chalcopyrite depositional stage, (2) a subsequent CO2-rich fluid, that deposited native gold, tellurides, selenides and bismuthinite, developed (at ≥1.8 Ga) as a result of a phase separation, (3), a moderate- to high-salinity aqueous fluid did also develop at this event and led to the deposition of bornite and (4) a concluding, low-salinity aqueous fluid stage (at ≤1.8 Ga) caused oxidation to covelline and digenite of previously formed phases. It is proposed that the Solstad deposit and other Cu ± Co-rich sulphide (± magnetite) occurrences in the Västervik region along the southernmost margin of the 1.9–1.8 Ga Svecofennian Domain, represent a distinct ore type associated with quartzites and amphibolites.","PeriodicalId":55094,"journal":{"name":"Gff","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41410035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hitherto undetected pore-canal network in the shell wall of the Ordovician Orthoceras from Baltoscandia (Cephalopoda: orthoceratida, calciosiphonata) 巴尔托斯坎迪亚奥陶系正角兽壳壁上迄今未发现的孔管网络(头足纲:正角兽目，钙化角兽目)

IF 1 4区地球科学

Gff Pub Date : 2022-09-27 DOI: 10.1080/11035897.2022.2042377

H. Mutvei

{"title":"Hitherto undetected pore-canal network in the shell wall of the Ordovician Orthoceras from Baltoscandia (Cephalopoda: orthoceratida, calciosiphonata)","authors":"H. Mutvei","doi":"10.1080/11035897.2022.2042377","DOIUrl":"https://doi.org/10.1080/11035897.2022.2042377","url":null,"abstract":"ABSTRACT The structure of the shell wall in the Ordovician Orthoceras differs from that in the extant Nautilus. It consists of two equal thick layers: an outer probably nacreous layer and an inner prismatic layer. The two layers are separated from each other by a thin intermediate sub-layer that is rich in organic substance and has indistinct boundaries. The intermediate sub-layer and the inner prismatic layer contain a hitherto undetected pore-canal network that consists of vertical and horizontal canals. Horizontal canals are arranged in a single layer in the outermost part of the intermediate sub-layer. The vertical canals are arranged in parallel rows, and the canals in each row open into one of the horizontal canals. The canals have thin walls of calcified organic fibres. The walls are preserved in the intermediate sub-layer, whereas in the inner prismatic layer, they are partially dissolved. The canal network is absent in the shell wall of the extant Nautilus, but the horizontal canals occur in the shell wall of the Carboniferous orthocerid-like coleoid Mitorthoceras and the bactritid-like coleoid Shimanskya. Thus, the pore-canal network had an important, still unknown, function for the animal, and it existed, without changes, at least 150 ma.","PeriodicalId":55094,"journal":{"name":"Gff","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47280354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The Middle Ordovician Jinonicella (Mollusca) from Belarus and Ukraine 白俄罗斯和乌克兰的中奥陶世Jinonicella（软体动物）

IF 1 4区地球科学

Gff Pub Date : 2022-04-03 DOI: 10.1080/11035897.2022.2047773

A. Gubanov, S. Bakayeva, J. R. Ebbestad, O. Bogolepova

引用次数: 0

The Holocene of Sweden – a review 瑞典全新世——综述

IF 1 4区地球科学

Gff Pub Date : 2022-04-03 DOI: 10.1080/11035897.2022.2086290

S. Wastegård

{"title":"The Holocene of Sweden – a review","authors":"S. Wastegård","doi":"10.1080/11035897.2022.2086290","DOIUrl":"https://doi.org/10.1080/11035897.2022.2086290","url":null,"abstract":"ABSTRACT This paper presents a review on more than hundred years of palaeoenvironmental research in Sweden; from early descriptions of peat and tufa deposits in the late nineteenth and early twentieth centuries to multiproxy transfer function studies in the late twentieth and early twenty-first centuries CE. Research on Holocene climate variability has a long history in Sweden and many ideas and concepts about changes in temperature and precipitation during the Holocene originated in Fennoscandia. The Holocene climate evolution in Sweden follows a pattern in common for many northern latitude records with a rapid warming starting at the Pleistocene–Holocene boundary at c. 11 650 cal a BP, followed by the middle Holocene thermal maximum between c. 8000 and 5000 cal a BP. A change to colder and wetter conditions starts c. 4000 cal a BP and lasts until the late 1800 s CE. There is evidence for climatic anomalies such as the 8.2 and 4.2 ka BP events and the Little Ice Age (LIA) but only inconclusive evidence for other events, such as the 10.3 ka BP event. The main pattern of Holocene climate and environmental evolution is well known for most parts of Sweden, but the present review also shows that several research questions remain to be addressed.","PeriodicalId":55094,"journal":{"name":"Gff","volume":"144 1","pages":"126 - 149"},"PeriodicalIF":1.0,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47048016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

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