Dear Carbonate Researcher.
To get a free membership at the Carbonate Network, please follow the instructions below and submit
this entire file to brafaelsen@hotmail.com with the heading “Carbonet membership”.
1. Contact information. Fill in your contact information in the example provided here:
Name: Andreas Olaus Harstad
Position: Doctoral student
E-mail: a.o.harstad_nospam@nhm.uio.no
Homepage: http://folk.uio.no/andreash
Comment: Use the word nospam (as shown) in your e-mail adress. This is to prevent robots scanning the internet to get hold
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2. Personal information. Please fill in your data in the template found on page 2 (using the same font
size etc.) and add a picture of yourself at the top. In addition to this you may add 1-3 pictures
associated with your work. These pictures should not be too large (preferably no more than 500 x 500
pixels), in order to make downloads fast and easy. If possible, refer to the pictures in the text or give a
proper figure caption. Please note that the maximum length is one page (including pictures, text and
captions).
3. Submission. Submit this entire file to brafaelsen@hotmail.com with the heading “Carbonet
membership”. When submitting these data you accept that they are posted on the Carbonate Network
home page.
Thank you for taking the time to do this.
Best regards, Bjarne Rafaelsen
Personal information template
Name: Andreas Olaus Harstad
Tel: +47 22 85 16 37, Fax: +47 22 85 18 00
Adress: University of Oslo - Geological museum, The Natural History Museums and
Botanical Garden, P.O.Box 1172 Blindern, NO-0318 OSLO, Norway
Education: cand. scient. (mineralogy and petrology) 1999
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Research areas:
My research focuses on the geology and geochemistry of limestones. I'm currently working on a project called
"Impurities in carbonates" were the aim is to understand the distribution and nature of impurities in carbonate
rocks and minerals. My focus in this aspect is limestone (rock) and calcite (mineral). With respect to limestones,
the study focuses on understanding the nature and distribution of impurities (mineralogy and geochemistry) and
how these behave and affect the limestone during contact metamorphism of the system. Special emphasize is
given to the process of thermally induced grain coarsening. Analytical techniques applied to this study are X-Ray
Fluorescence (XRF), Scanning Electron Microscopy (SEM), Carbon and Oxygen isotopes and Image analysis.
The calcite crystal studies focuses on the role of impurities in processes connected to crystal growth and
dissolution. Does the presence of geochemical impurities in calcite affect the morphology and colour of the
crystals? Does the presence of impurities affect the dissolution behaviour of calcite? Analytical techniques
applied to these studies are AAS (Atomic Absorption), ICP-MS (Inductively Coupled Plasma Mass
Spectroscopy), Carbon and Oxygen isotopes, SEM, Cathodoluminescence (CL) and Atomic Force Microscopy
(AFM).
Complex calcite crystal growth
Image processed calcite grain texture
Etch-pit on the (10-14) cleavage
surface of calcite
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