Economic and Environmental Geology

Indexed in /covered by CAS, KoreaScience & DOI/Crossref:eISSN 2288-7962   pISSN 1225-7281

Table. 1.

Table. 1.

Major (wt%) element abundances of volcanic rocks from Hyeongjaeseom, Jeju Island

ID HJ-1 HJ-2 SE02*
Rock Name BTA BTA TB
SiO2 51.25 51.31 50.10
TiO2 2.30 2.32 2.32
Al2O3 16.35 16.41 15.55
FeOt 10.53 10.64 10.47
MnO 0.15 0.15 0.15
MgO 5.48 5.44 6.82
CaO 7.34 7.40 7.92
Na2O 4.08 4.13 3.75
K2O 1.88 1.88 1.69
P2O5 0.60 0.60 0.54
Total 99.96 100.29 99.31

Analized by XRF, Oregon State University

Total Fe as FeOt

Abbreviation: TB-trachybasalt, BTA-basaltic trachyandesite

*Sample from Songaksan

Econ. Environ. Geol. 2021;54:187-97 https://doi.org/10.9719/EEG.2021.54.2.187
© 2021 Econ. Environ. Geol.