Change search
Refine search result
1 - 6 of 6
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    De La Rosa, Nathaly
    et al.
    Lunds universitet.
    Kristiansson, Per
    Lunds universitet.
    Nilsson, Charlotta
    Lunds universitet.
    Ros, Linus
    Lunds universitet.
    Pallon, Jan
    Lunds universitet.
    Skogby, Henrik
    Swedish Museum of Natural History, Department of Geology.
    Quantification of lithium at ppm level in geological samples using nuclear reaction analysis2018In: Journal of Radioanalytical and Nuclear Chemistry, ISSN 0236-5731, E-ISSN 1588-2780, Vol. 317, p. 253-259Article in journal (Refereed)
  • 2. Demidova, S. I.
    et al.
    Whitehouse, M. J.
    Swedish Museum of Natural History, Department of Geology.
    Merle, R.
    Nemchin, A. A.
    Kenny, G. G.
    Swedish Museum of Natural History, Department of Geology.
    Brandstätter, F.
    Ntaflos, Th.
    Dobryden, I.
    A micrometeorite from a stony asteroid identified in Luna 16 soil2022In: Nature Astronomy, E-ISSN 2397-3366, Vol. 6, no 5, p. 560-567Article in journal (Refereed)
    Abstract [en]

    Despite the intense cratering history of the Moon, very few traces of meteoritic material have been identified in the more than 380 kg of samples returned to Earth by the Apollo and Luna missions. Here we show that an ~200-µm-sized fragment collected by the Luna 16 mission has extra-lunar origins and probably originates from an LL chondrite with similar properties to near-Earth stony asteroids. The fragment has not experienced temperatures higher than 400 °C since its protolith formed early in the history of the Solar System. It arrived on the Moon, either as a micrometeorite or as the result of the break-up of a bigger impact, no earlier than 3.4 Gyr ago and possibly around 1 Gyr ago, an age that would be consistent with impact ages inferred from basaltic fragments in the Luna 16 sample and of a known dynamic upheaval in the Flora asteroid family, which is thought to be the source of L and LL chondrite meteorites. These results highlight the importance of extra-lunar fragments in constraining the impact history of the Earth–Moon system and suggest that material from LL chondrite asteroids may be an important component.

  • 3.
    Kristiansson, Per
    et al.
    Lunds universitet.
    Borysiuk, Maciek
    Lunds universitet.
    Hålenius, Ulf
    Swedish Museum of Natural History, Department of Geology.
    Mosenfelder, Jed
    Caltech, Pasadena, CA, USA.
    Ros, Linus
    Lunds universitet.
    Skogby, Henrik
    Swedish Museum of Natural History, Department of Geology.
    Abdel, Naseem
    Lunds universitet.
    Elfman, Mikael
    Lunds universitet.
    Nilsson, Charlotta
    Lunds universitet.
    Pallon, Jan
    Lunds universitet.
    The implementation of a DSSSD in the upgraded boron analysis at LIBAF for applications in geochemistry2014In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, ISSN 0168-583X, E-ISSN 1872-9584, Vol. 332, p. 207-211Article in journal (Refereed)
    Download full text (pdf)
    NIMB332_207
  • 4.
    Nemchin, Alexander
    et al.
    Curtin University.
    Jeon, Heejin
    University of Western Australia.
    Bellucci, Jeremy
    Swedish Museum of Natural History, Department of Geology.
    Timms, Nick
    Curtin University.
    Snape, Joshua
    Swedish Museum of Natural History, Department of Geology.
    Kilburn, Matthew
    University of Western Australia.
    Whitehouse, Martin
    Swedish Museum of Natural History, Department of Geology.
    Pb-Pb ages of feldspathic clasts in two Apollo 14 breccia samples2017In: Geochimica et Cosmochimica Acta, ISSN 0016-7037, E-ISSN 1872-9533, Vol. 217, p. 441-461Article in journal (Refereed)
    Abstract [en]

    Pb-Pb isochron ages of ca. 3.92 Ga for three K-feldspar-rich clasts from Apollo 14 breccias 14303 and 14083 were determinedusing Secondary Ion Mass Spectrometry (SIMS). These ages are interpreted to represent the resetting of the U-Pb systemin the clasts as a result of brecciation during the Imbrium impact. One of the clasts contains zircon grains that record asignificantly older crystallization age (ca. 4.33–4.35 Ga) for the rock represented by that clast. Initial Pb compositions determinedfor the clasts, combined with the previously measured Pb isotopic compositions of K-feldspar grains from severalApollo 14 breccia samples, constrain a range of initial Pb compositions in the ca. 3.9 Ga Fra Mauro formation at the Apollo14 landing site. This range in initial Pb compositions indicates that the rocks represented by these clasts, or the sources ofthose rocks, evolved with a high 238U/204Pb (µ-value) for substantial periods of time, although the precise crystallization agesof the rocks represented by at least two of the clasts investigated here are unknown.

    Download full text (pdf)
    fulltext
  • 5.
    Nikolopoulos, Anna
    et al.
    AquaBiota Water Research.
    Sigray, Peter
    Swedish Defence Research Agency (FOI).
    Andersson, Mathias
    Swedish Defence Research Agency (FOI).
    Carlström, Julia
    Swedish Museum of Natural History, Department of Environmental research and monitoring.
    Lalander, Emilia
    Swedish Defence Research Agency (FOI).
    BIAS Implementation Plan: Monitoring and assessment guidance for continuous low frequency sound in the Baltic Sea2016Report (Other academic)
    Abstract [en]

    The BIAS Implementation Plan describes a regional programme for monitoring underwater ambient noise in the Baltic Sea. The programme combined measurements and modelling and was successfully implemented in 2012-2016 within the EU LIFE+ project Baltic Sea Information on the Acoustic Soundscape (BIAS) by Sweden, Denmark, Germany, Poland, Estonia and Finland.

    In 2014, one year of sound measurements was performed at 36 locations with the purpose of establishing the baseline state of ambient noise levels in the Baltic Sea. The measurements, as well as the post-survey processing of the data, were subject to standardized field procedures, quality control and signal processing routines were all developed within BIAS.

    BIAS dealt exclusively with monitoring continuous low frequency sound as referred to by the Marine Strategy Framework Directive indicator 11.2.1. Therefore, the study focused on the 1/3 octave frequency bands of 63 and 125 Hz, as specified by the indicator, and a third frequency band (2 kHz) which was added to strengthen the ecological relevance of the BIAS results.

    The measured sound data were used to model the soundscape for the entire project area, providing the first results for the Baltic Sea on a monthly basis. Soundscape maps were produced for the three targeted frequency bands, and three depth intervals: the surface layer (0 to 15m deep), the deep layer (30m to the bottom), and the full water column of the Baltic Sea.

    A large number of soundscape maps were produced constituting the base for future management of noise in the Baltic Sea. To facilitate an efficient handling of these, and future, results a GIS-based soundscape planning tool was created for visualizing the measured data and the modelled maps in a management friendly concept. BIAS identified two useful statistical measures for characterizing the soundscape which were incorporated into the soundscape planning tool. The year-by-year change of these measures directly relate to the current definition of the indicator.

    Based on the experiences made in the project, the BIAS implementation plan also outlines a plausible strategy for the future monitoring and the elements needed for maintaining a joint implementation for underwater ambient noise in the Baltic Sea region.

    Download full text (pdf)
    fulltext
  • 6.
    Nilsson, E.J. Charlotta
    et al.
    Lunds Universitet.
    Kristiansson, Per
    Lunds Universitet.
    Ros, Linus
    Lunds Universitet.
    De La Rosa, Nathaly
    Lunds Universitet.
    Elfman, Mikael
    Lunds Universitet.
    Hålenius, Ulf
    Swedish Museum of Natural History, Department of Geology.
    Pallon, Jan
    Lunds Universitet.
    Skogby, Henrik
    Swedish Museum of Natural History, Department of Geology.
    A nuclear geochemical analysis system for boron quantification using a focused ion beam2017In: Journal of Radioanalytical and Nuclear Chemistry, ISSN 0236-5731, E-ISSN 1588-2780, Vol. 311, p. 355-364Article in journal (Refereed)
    Abstract [en]

    Ion beam analysis has for decades been used as a tool for geochemical analysis of trace elements using both X-rays (particle induced X-ray emission) and nuclear reaction analysis. With the geoanalytical setup at the Lund Ion Beam Analysis Facility, the boron content in geological samples with a spatial resolution of 1 µm is determined through nuclear reaction analysis. In the newly upgraded setup, a single detector has been replaced by a double sided silicon strip detector with 2048 segments. After optimization, boron content in geological samples as low as 1µg g-1 can be measured.

    Download full text (pdf)
    fulltext
1 - 6 of 6
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf