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SAMPLE INFO : ERP1
Sample ID:ERP1
Station ID:ERP1
Latitude:57.18
Longitude:-170.3
Datum:NAD83
Sample Type 1:Lava
Sample Type 2:Flow
Text Description:
From Feeley and Winer (1999): "On the east side of the isthmus connecting Reef Point to the main island are two compositionally similar, faulted and tilted pahoehoe lava flows. The lower flow of black basalt (ERP2) displays well-developed columnar jointing and both have well-preserved, smooth, ropy surfaces. Both flows were probably very fluid when erupted as suggested by the small diameter (~4 cm) of the glassy surface ropes. The combined thickness of both flows is ~5 m."

References:
Evidence for fractionation of Quaternary basalts on St. Paul Island, Alaska, with implications for the development of shallow magma chambers beneath Bering Sea volcanoes

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final UnitMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-majorsREF majorsMETH majorsFe2O3/Fe203T origFeO/FeOT origVolatiles csvMETH volatilesCsRbBaSrLaCePrNdSmEuGdTbDyHoErTmYbLuYZrNbHfTaPbThUScVCrFeCoNiCuZnGaMoAsNaKRef trace1METH trace1RbBaSrLaCeNdSmEuGdDyErYbLuYZrNbPbThUScTiVCrNiCuZnGaRef trace2METH trace2Light csvHalogen csvother major csvother lile csvother ree csvother hfse csvother hpe csvother tm csvother misc csv
ERP157.18-170.3Winer, G. S. St. Paul IslandSample collected from the east side of the isthmus connecting Reef Point to the main island, St. Paul. From Feeley and Winer (1999): "On the east side of the isthmus connecting Reef Point to the main island are two compositionally similar, faulted and tilted pahoehoe lava flows. The lower flow of black basalt (ERP2) displays well-developed columnar jointing and both have well-preserved, smooth, ropy surfaces. Both flows were probably very fluid when erupted as suggested by the small diameter (~4 cm) of the glassy surface ropes. The combined thickness of both flows is ~5 m."ERP1LavaWhole-rock 46.06 2.55 13.63 12.2 0.18 10.75 9.51 3.43 1.22 0.48 100.72115XRF13.4712.2 13 249 547 22.2 39 22.9 5.27 1.78 0.8 1.78 0.16 21 163 41.5 3.84 2.24 1 3 21.5 231 292 57.5 211 52 98 20 115XRF: Rb, Ba, Sr, Y, Zr, Nb, Pb, Th, V, Cr, Ni, Cu, Zn, Ga; INAA: La, Ce, Nd, Sm, Eu, Tb, Yb, Lu, Hf, Ta, Sc, Co;

SAMPLE LOCATION

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Page modified: August 1, 2017 15:29
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