USGS Open-File Report 2012–1050: Trace-Element Analyses of Core Samples from the 1967–1988 Drillings of Kilauea Iki Lava Lake, Hawaii

Open-File Report 2012–1050

Trace-Element Analyses of Core Samples from the 1967–1988 Drillings of Kilauea Iki Lava Lake, Hawaii

By Rosalind Tuthill Helz

Introduction

This report presents previously unpublished analyses of trace elements in drill core samples from Kilauea Iki lava lake and from the 1959 eruption that fed the lava lake. The two types of data presented were obtained by instrumental neutron-activation analysis (INAA) and energy-dispersive X-ray fluorescence analysis (EDXRF). The analyses were performed in U.S. Geological Survey (USGS) laboratories from 1989 to 1994. This report contains 93 INAA analyses on 84 samples and 68 EDXRF analyses on 68 samples. The purpose of the study was to document trace-element variation during chemical differentiation, especially during the closed-system differentiation of Kilauea Iki lava lake.

First posted May 7, 2012

Report PDF (5.96 MB)

For additional information contact:
Rosalind Tuthill Helz
U.S. Geological Survey
National Center
Mail Stop 926A
Reston, VA 20192
http://volcanoes.usgs.gov/

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Suggested citation:

Helz, R.T., 2012, Trace-element analyses of core samples from the 1967–1988 drillings of Kilauea Iki lava lake, Hawaii: U.S. Geological Survey Open-File Report 2012–1050, 46 p., available only at http://pubs.usgs.gov/of/2012/1050.

Introduction

Background and Previous Work

Sample Selection and Analytical Methods

Description of the Analytical Tables

Availability and Coherence of Trace-Element Data

Overview of Processes Active in Kilauea Iki Lava Lake

Trace-Element Variations in Kilauea Iki Lava Lake

Chondrite-Normalized Rare-Earth Element Patterns

Discussion and Summary

References Cited

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Trace-Element Analyses of Core Samples from the 1967–1988 Drillings of Kilauea Iki Lava Lake, Hawaii

By Rosalind Tuthill Helz

Introduction

Suggested citation:

Contents