cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.23729/192b6e1e-fffc-401e-9498-0a33c233d230
title: Martimo_57B

description: Martimo_57B is a pyrrhotite-quartz-mica schist drill core sample. The sample was extracted from the Paleoproterozoic Martimo metasedimentary belt of northern Finland. The XCT resolved the spatial distribution, shape and orientation of pyrrhotite grains localized in mm-thick metapelitic laminae. The sample was also used for the AMS (Anisotropy of Magnetic Susceptibility) analysis. Results from another drill core (sample 57), which actually comes from the same location, are already published in Sayab, M., Miettinen, A., Aerden, D., Karell, F., 2017. Orthogonal switching of AMS axes during type-2 fold interference: Insights from integrated X-ray computed tomography, AMS and 3D petrography. Journal of Structural Geology 103. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:e40f36a3-0a0e-4b68-be1d-1ae53afc749b
DOI: 10.23729/ab95cb7a-70a4-4013-8da0-492ff2283f56
title: South Croft Ore

description: This is a drill core taken from underground at South Crofty Tin Mine in Cornwall, around 1997, before it was closed in 1998, showing a good example of the classic style of tin mineralization associated with a shear zone. Excellent for revealing the dense cassiterite in a silicate hosted faulted rock. Measured at two different resolutions to show how we can overlay images from different measurement conditions. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:cbe9a72c-f4d6-4cbc-8b8a-b1bc55b6f29f
DOI: 10.23729/a242fea7-0066-4e5e-ad67-2d06abd76c8c
title: W-11

description: Sample W11 is a garnet-mica schist collected from the northwest Himalayas, Pakistan. The garnet porphyroblasts preserve spectacular spiral inclusion trails. The purpose of scanning this sample was to virtually deduce the Foliation Intersection Axis (FIA) orientation from the spiral inclusion trails. Traditionally, this was achieved by cutting at least 8 oriented thin sections from a rock sample in the thin section preparation lab, which is a time consuming, tedious and destructive procedure. We determined the FIA non-destructively for this sample and, hence, an efficient way of micro-structural analysis down to the micron scale. Platetest scans were done to see the effect of low energy on a plate-like object. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:a3d3370d-d8a2-45eb-8bea-4a31e83489ae
DOI: 10.23729/0497f724-ca35-4bac-b239-f026f4ad668c
title: CMEco

description: Various non-ferrous metal pieces from the bottom ash of a waste processing plant, embedded in epoxy. The pieces were also studied with scannign electron microscopy and the SEM results are included in the preview dataset of this data. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:dd46f887-eac0-44c6-ae17-b125a9b1a11c
DOI: 10.23729/819164a5-4da5-4975-8942-2457cbb80cab
title: PSW-cores

description: Two drillcores with similar structures. One (9-12) was used to see if we can see fault slicken lines in 3D (we could) and the other a discovery sample from Pampalo, which in its own part lead to a mine there. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:098acd89-7767-4631-969a-e18e87532612
DOI: 10.23729/abe359d5-05a4-41dc-8e8e-98db4a8f7287
title: Kittilä

description: Kittilä-01, Kittilä-02 and Kittilä-03 were collected from the Etelä pit, which is the southern extension of the Suurikuusikko mine or Kittilä mine, northern Finland. The purpose of scanning these three samples was to understand the 3-D textural characteristics of sulfides with respect to the rock matrix. X-ray tomography images and results are presented in Sayab, M., Molnár, F., Aerden, D., Niiranen, T., Kuva, J., Välimaa, J., 2019. A succession of near-orthogonal horizontal tectonic shortenings in the Paleoproterozoic Central Lapland Greenstone Belt of Fennoscandia: constraints from the world-class Suurikuusikko gold deposit. Mineralium Deposita. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:9f6c6221-d37d-4795-b72f-49485d93901d
DOI: 10.23729/0e68d66d-a3f3-41b2-882b-1bd62a70ee2e
title: Cordierite

description: A monolithic structure used as catalyst solid structure material. Catalytic layers are coated on the monolith via washcoating method. The CT-study was done to discover integrity of the catalytic coating layer inside monolith, which is not otherwise possible without breaking the monolith structure. Included in El Assal, Z., 2018. Synthesis and characterization of catalysts for the total oxidation of chlorinated volatile organic compounds. PhD Dissertation. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:b0615734-ee80-46e4-a04a-de88c779db82
DOI: 10.23729/8eaf3c97-e6de-4b45-9426-1d113d456858
title: Foams

description: Foam structure made from feldspar is an alternative structure to support catalytic materials. This sample did not have catalytic coating yet, and we wanted to get information on the inner structure of the foam. In addition, the aim was to discover the porosity and surface roughness of the material. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:4de73d1b-dc2e-42de-983e-bf792286e95d
DOI: 10.23729/f8675ec1-77e5-41a6-9c38-b80d4b596316
title: Am-ZnP-PAN

description: Composite structure intended as ion exchange material. More info in Xu, J., Virolainen, S., Zhang, W., Kuva, J., Sainio, T., Koivula, R., 2018. Polyacrylonitrile encapsulated amorphous zirconium phosphate composite adsorbent for Co, Nd and Dy separations. Chemical Engineering Journal 351: 832-840. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:088f086a-2459-4911-b6bc-5faf623468bf
DOI: 10.23729/627c80ef-f7c3-4588-80fe-ca8ba629a320
title: CoalCEpellet

description: The pellets were catalytic pellets made from Cobalt and aluminium oxides or cobalt, aluminum and cerium oxides. As a binding agent bentonite clay was used. The aim of the study was to discover the homogeneity of the pellet. A fresh and used pellet were scanned. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:11099a1c-5baf-4ecb-8377-f1583f42eb6f
DOI: 10.23729/3763b763-fbbd-4de7-8fe5-828475d74462
title: Palava

description: A large chunk of oil shale, or "palava kivi", from Estonian coast. Contains many fossils. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:87c69cf0-24ff-4187-8529-90727e0393a8
DOI: 10.23729/849b136f-ee52-4fa7-884b-5a07bb40089f
title: Mount Isa

description: Garnet-staurolite-mica schist from Eastern Fold Belt, Mount Isa, Queensland, Australia. Was considered for the same publication as sample W-11, but was ultimately left out. Microstructural details have been published in Sayab, M. 2005. Microstructural Evidence for N-S Shortening in the Mount Isa Inlier (NW Queensland, Australia): the Preservation of Early W-E Trending Foliations in Porphyroblasts Revealed by Independent 3D Measurement Techniques. Journal of Structural Geology 27(8). Another publication is likely to follow. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:2cde1fc9-4e80-468e-bf6d-ffee9b72e184
DOI: 10.23729/3d01e5f5-3fa9-4bea-b888-a5425228dc69
title: KYNS-AMS

description: Various rock samples, mainly from Kynsikangas, SW Finland, studied to examine the relation of anisotropy of magnetic susceptibility (AMS) and rock mineral structure. Samples marked transformed horizontal are rotated so that XY is horizontal plane and positive X-axis points north. Publication is still being written at the time of moving data to long-term storage. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:5f7d33eb-7d08-4b74-af11-d26ced413ad9
DOI: 10.23729/b90cc5b3-4cae-4d09-b900-43a30e388d9d
title: MX-80 Bentonite Block

description: Two blocks of MX-80 bentonite, imaged in various resolutions. Block 04-05B is also included in Reijonen, H., Kuva, J., Heikkilä, P. 2020. Benefits of applying X-ray computed tomography in bentonite based material research focussed on geological disposal of radioactive waste. Environmental Science and Pollution Research. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:278db3a9-df60-454e-be69-56d57c9c109e
DOI: 10.23729/59c62d5f-dc6e-4be6-b385-379b7bf41bf7
title: Durable Polyamide

description: Enhanced polyamide made in DURPOL project. Sample R033_5 is polyamide with 20 weight-%% glass fibre and 12.5 weight-%% glass beads. Sample R034_2.1 is polyamide with 20 weight-%% glass beads and 1 weight-%% graphene oxide. Samples were scanned to see how evenly the durability-enhancing materials were distributed within the plastic. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:2eed8996-9a31-416b-ba84-a3e95691be61
DOI: 10.23729/bf819c7c-160a-4226-b448-bff0a79b06ef
title: Bentonite Pellet Wetting Experiment

description: Commercial bentonite pellets were imaged in a beaker and then immersed in MilliQ water, after which their wetting was imaged with XCT in various time points. Description of sample and experiment are also included in Reijonen, H.M., Kuva, J., Heikkilä, P. 2020. Benefits of applying X-ray computed tomography in bentonite based material research focussed on geological disposal of radioactive waste. Environmental Science and Pollution Research. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:8e5c11dd-4ad0-4762-8950-492a5a276120
DOI: 10.23729/f9d80969-5073-4413-97ef-3909227478c7
title: METAMMI test samples

description: Two test samples for VTT MIKES project METAMMI. Probe Forest was a self-built calibration sample with ruby spheres at the ends of carbon fibre rods at set locations. Implantti_2 was a medical implant based on CT scan of the patient. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:7bd381d4-bfc5-4517-8864-74ff42b3ba76
DOI: 10.23729/718f8f91-c732-4b07-a0a4-30a72f7d9402
title: Chicxulub Impact Crater

description: The samples are from drill core of IODP-ICDP Expedition 364 'Drilling the K-Pg boundary impact', which is the 66 Ma Chicxulub crater, Mexico. This meteorite impact event wiped out about the 75 % of the species that existed at that time, including the dinosaurs. The samples analysed with micro-CT were taken from the so called suevite, a unit that consists of highly fragmented rock covering solidified impact melt, and from granitoid rocks, that form the basement to the crater and which were uplifted during the cratering from mid-crustal depths. The granitoid rocks are shock-metamorphosed and show a number of deformation structures. More information in Riller, U., et al., 2018, Rock fluidization during peak-ring formation of large impact structures. Nature 562. The purpose of the CT-analysis was to display fragment and mineral fabrics as well as quantifying the porosity in both rock units. In terms of mineral fabrics, we were not very lucky, as the rocks consist mostly of feldspar and quartz, which have similar densities. We were, therefore, unable to quantify preferred orientations of the two mineral phases. We were the more happy to display and quantify porosity of these rocks, which are unusually high, up to about 15 %, compared to equivalent and unshocked rocks outside the crater. The high porosities account nicely for the low seismic velocities that were measured in these rocks. A very nice result in this regard is also, that the porosities are very low in zones, where the rock was fractured to a very small grain size, but rather high in fractured rock hosting the ultra-cataclasite. This result is very surprising to us, as porosity in brittle rocks usually increases with fracturing intensity. The shocked granitoid rocks show the opposite. Either there is a threshold in grain size, below which CT does not detect porosity well, because open spaces are so small, in which case the porosity estimates may be incorrect, or porosity is indeed that low. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:6f14a13f-200d-47b5-80c9-f86a98e6482d
DOI: 10.23729/7880a25a-3004-486a-b085-724f322607c7
title: Iceland Lava

description: The samples represent a selection of picritic lavas from Iceland. Lava is magma that erupted from a volcano as a molten material, flowed from some distance, and finally cooled and solidified on the surface. Picrites are dark coloured rocks, most easily distinguished by their high abundance of the mineral olivine, a greenish yellow and stubby phase, which usually occurs as large (several mm) crystals. Picrites are chemically primitive (high Mg, low Si), which means they have not chemically changed much since they were produced by melting inside the Earth's mantle. Due to this primitive nature, picrites are useful to researchers because they can be regarded as chemical messengers from the mantle that 'speak' the clearest. Yet, even these rocks must be interpreted together with evidence for their physical evolution, such as crystal settling and vapor phase processes. By measuring the 3D textures of these lavas, the physical histories of each feature can be addressed since it is their combined shape and density that affect their physical behavior. These measurements are not possible using only 2D data. New insights to the range of cooling paths during ascent and emplacement of the magma can be discovered because each crystal or voids' history can be understood in relation to each of the others, which forms a picture of how the magma has moved through time. When chemical information from inside individual crystals is placed into this broad physical context, a more complete understanding of melt extraction from the mantle is possible. Thanks to Thor Thordarson (University of Iceland) and Godfrey Fitton (University of Edinburgh) for allowing access to this collection, and generous donation of these sub-samples for ongoing study. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:6f044732-2a5a-4655-bba1-8e9d661492da
DOI: 10.23729/59190d89-ae0c-459f-bc1f-a3b408b9d71a
title: Baltic Fossils

description: The analysed samples are Baltic Early Paleozoic (ca 420-485 million years old) sedimentary rocks that include burrows and borings made by various marine organisms. X-ray CT scanning enabled revealing the complex 3D architecture of these trace fossils within carbonate rocks, which facilitated understanding their taxonomy and behavior of the trace-makers. The best results were obtained when the trace fossils had pyritic impregnation or carbonate infill within organic-rich kukersite oil shale. The study results were used in PhD dissertation of Ursula Toom. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:89022519-2c2d-438b-9cef-d83a4343b2d3
DOI: 10.23729/a81f7dfa-004c-41cc-bb1a-99d87135fb63
title: Pyhäsalmi ore

description: Drillcore samples from and near Pyhäsalmi ore deposit. The aim was to study the connection and relation of ore formation and rock structure. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at http://urn.fi/urn:nbn:fi:att:62db71a7-22b3-414c-ad24-0fd7f1ba79d5
DOI: 10.23729/ed624e23-5594-4135-935c-b2729fc913f2
title: Tsukinuno bentonite

description: Various samples of Tsukinuno bentonite from Japan. Samples are discussed in detail in: Reijonen, H., Kuva, J., Heikkilä, P. 2020. Benefits of applying X-ray computed tomography in bentonite based material research focussed on geological disposal of radioactive waste. Environmental Science and Pollution Research. doi: 10.1007/s11356-020-08151-2 To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/ff26059e-474a-4156-b12f-ebd0a9c4b285
DOI: 10.23729/21561fb3-6544-4b3a-9b17-4a46d6406c17
title: RSA Iron

description: This sample is a spectacular example of a banded iron formation or BIF - where by fine grains of iron ore have been deposited in to a shallow water environment and preserving micro-scale depositional events. The significance is that these rocks containing Fe-oxides is that they show there must have been an atmosphere on Earth at these times (Archaean) , otherwise oxides could not form (and did not before these times). This is the so-called great oxygenation event in geological history. Exact location is unknown but it is from South Africa. From the Butcher Collection. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/161d467b-e35b-49b1-b9c2-e4cf70cdf5a7
DOI: 10.23729/32324822-a868-4442-9965-aa0bcc446e4d
title: Garnets

description: The purpose of scanning these particular samples was to show the power of micro-CT technique in tackling complex inclusion trails in garnet porphyroblasts. There are nice spiral patterns inside the garnets. The idea was to demonstrate that by using 3D imaging method, micro-fold axis orientation can readily be measured even within porphyroblasts. These micro-fold axes orientations would help in reconstructing deformed rocks at the regional scale. Samples are from University of Granada, Spain. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/3e7dea54-de0d-423f-8b2e-05f73eed1b48
DOI: 10.23729/c4738b45-1013-40e1-974e-14974ea34610
title: High Purity Quartz

description: High purity quartz samples from various locations in Finland. More information on samples and their locations can be found from Al-Ani, T., Grönholm, S., Pohjolainen, E., Kuva, J. High Purity Quartz (HPQ); Mineralogical, Geochemical and Potential Occurrences in Finland. 2019. GTK Open File Work Report. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/bc1622a4-7010-478b-b45e-e6aba2ee463a
DOI: 10.23729/bbb9b3e8-0a21-417d-a946-ef402dbcfd2e
title: AdvanCT

description: Various samples imaged to test the capabilities of the device for metrology purposes. Surgical needles of two different sizes, fuel nozzles of two different sizes and a welded joint. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/823586be-5d59-466d-8de0-bcffedfe7556
DOI: 10.23729/7a8f761b-3be0-4038-8199-73b5427978fa
title: XBA_Ind_XCT

description: Various 3D-printed samples imaged to test the capabilities of the device. Materials consist of different metals and shapes. 3D model for PipeJoint is available publicly at https://info.vttresearch.com/3dmetalprint-sharing-platform To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/202c0143-31a8-47a5-8f92-2235125fd40a
DOI: 10.23729/811365cb-05b1-45f8-8e13-0c7d2000b08a
title: Kylylahti ore

description: Rock samples from Kylylahti, drilled close to a contact between ore and waste rock. Sampling was originally done during the Outokumpu mining project. Goal was to investigate the internal structure of the ore. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/56d9854a-d241-40e6-9457-0e2c699b41ee
DOI: 10.23729/596ab803-aced-4658-9ba7-57949d4b95db
title: Human skulls

description: Several human skull samples used in medical imaging, along with a ball grid phantom of same size scale, were imaged using traditional cone beam CT and helical CT. Owner of the samples will be updated in corresponding preview dataset if permission is received. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/229dbc4f-aab6-4d29-bf54-70da525c0cf6
DOI: 10.23729/ec1be3bb-69d0-4b88-a43f-88c487a84e97
title: inSPECTor

description: Several various geological samples imaged for the inSPECtor EU project to increase database of such 3D data. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/b28ed675-7bf4-4c4c-ad4b-3beab052706f
DOI: 10.23729/09f13aab-6ff8-4f47-83b3-905bac570530
title: Sakatti disseminated ore

description: Three examples of disseminated ore from the Sakatti deposit, Finland. The goal of this study was to characterize the 3D texture of this ore type and see if any genetic features could be identified. Will be included in the Master's Thesis of P. Barron, University of Helsinki. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/a7e9a968-efc0-4d55-a1bc-4f671435086c
DOI: 10.23729/b60f429c-e342-473b-ac38-c188698e8de3
title: Tisoa trace fossil

description: Carbonated tube structures of a Tisoa trace fossil. Data is to be used in a future publication. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/52993d92-2c12-40ca-898f-bb24c90d6399
DOI: 10.23729/f905c271-6776-4a97-a571-c44ec60c3d44
title: Isle of Rum

description: Two rock samples from the Isle of Rum, Scotland. Unit11-12 is from the Eastern Layered Series of the ultramafic-mafic layered intrusion on the Isle of Rum, Inner Hebrides, Scotland. Taken on Hallival from the boundary between the Cyclic Units of Unit 11 – Unit 12. Undulatory boundary is marked by a thin chromite seam, with peridotite above and anorthosite below. The aim was to image the 3D geometry of the chromite layer. Peridotite is taken from a plug on Barkeval, within the Eastern Layered Series of the Rum ultramafic-mafic intrusion. Outstanding skeletal olive crystals are evident within the peridotite, and were imaged to reveal their 3D geometry. Fishbone textures are clearly observed, suggesting formation by rapid crystallization, or even quenching, leading to branched morphologies from a central spine. Both samples are from Alan Butcher’s PhD collection. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/e7157fbd-69d1-44d7-8413-e3a133d0f61f
DOI: 10.23729/fe302b89-00e5-4805-a841-a02a37986436
title: Talvivaara-Vuonos

description: Two related rock samples from different locations. 3433:305_150.89m is from the Kolmisoppi ore deposit in Talvivaara mine, Finland. Sample was drilled by GTK before mining started. It is black slate that was imaged for a detailed 3D structure study. Same piece of rock has been investigated in detailed sulphur isotopic studies published in GTK Current Research in 1995: Loukola-Ruskeeniemi, K., 1995. Origin of the Talvivaara black-shale-hosted Ni-Cu-Zn deposit, eastern Finland. Other results from the same sample have been published in Loukola-Ruskeeniemi, K., Heino, T., 1996. Geochemistry and Genesis of the Black Shale-Hosted Ni-Cu-Zn Deposit at Talvivaara, Finland. Economic Geology. and Loukola-Ruskeeniemi, K., Lahtinen, H., 2012. Multiphase evolution in the black-shale-hosted Ni-Cu-Zn-Co deposit at Talvivaara, Finland. Ore Geology Reviews 52. Sample Vuonos has been described eg. in Loukola-Ruskeeniemi, K., 1999. Origin of Black Shales and the Serpentinite-Associated Cu-Zn-Co Ores at Outokumpu, Finland. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/6273175a-ba2d-4126-83f3-b1bb31f3e2e3
DOI: 10.23729/ada14378-f0a5-4c32-bca8-1509a7550b69
title: Metsämonttu

description: Two ore samples from the Metsämonttu deposit in Orijärvi, Salo, Finland. Pb-Zn-Ag-Au ore, so very difficult to penetrate with x-rays despite small sample size, causing severe artefacts in the data. Samples were imaged to look for free gold. Publication is still being written. To get this dataset, please contact fairdata-pas@gtk.fi. Preview dataset found at https://doi.org/10.23729/02eb1a5c-7656-4190-80d8-82fcf90b94f8