Multi-scale study of the mineral porosity of veined gneiss and pegmatitic granite from Olkiluoto, Western Finland

被引：22

作者：

Sammaljarvi, Juuso ^{[1
]}

Lindberg, Antero ^{[2
]}

Voutilainen, Mikko ^{[1
]}

Ikonen, Jussi ^{[1
]}

Siitari-Kauppi, Marja ^{[1
]}

Pitkanen, Petteri ^{[3
]}

Koskinen, Lasse ^{[3
]}

机构：

[1] Univ Helsinki, Dept Chem, Radiochem Unit, POB 55, Helsinki 00014, Finland

[2] Geol Survey Finland, Betonimiehenkuja 4, Espoo 02151, Finland

[3] Posiva Oy Olkiluoto, Eurajoki 27160, Finland

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 314卷 / 03期

关键词：

Porosity; C-14-PMMA autoradiography; Veined gneiss; Pegmatitic granite; FREE-RADICAL POLYMERIZATION; CRYSTALLINE ROCKS; THERMAL INITIATOR; ANION EXCLUSION; IN-SITU; DIFFUSION; MATRIX; IMPREGNATION; TRANSPORT; PMMA;

D O I：

10.1007/s10967-017-5530-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The purpose of this work was to support the long-term experiments for investigation of rock matrix retention properties at the spent nuclear fuel repository site ONKALO, in Olkiluoto, Western Finland. Towards this end, rock samples were characterised in terms of porosity connected to mineralogy, with emphasis on pore sizes, and fillings. Both filled and unfilled pores were found with unfilled pores being majority in the pegmatitic granite veins of the mostly veined gneiss samples. It was found that the fillings were often connected to local alteration and the alteration caused variation in the range of pore sizes.

引用

页码：1557 / 1575

页数：19

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