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Earth, Planets and Space

Table 1 A summary of analyses conducted on samples (denoted with a ‘x’)

From: Vikrahraun—the 1961 basaltic lava flow eruption at Askja, Iceland: morphology, geochemistry, and planetary analogs

Sample

Eruptive event

Distance from vent (km)

SEM crystallinity

MOSAIC vesicularity

Pycnometry bulk density

Pycnometry matrix density

Pycnometry connected porosity

ICP-MS Fe/Mg

EPMA olivine Fo#

EPMA plagioclase An#

EPMA pyoxene En#

EPMA glass Mg#

IIAU15-001

Vent Scoria

0.13

 

x

x

x

x

x

    

IIAU15-002

Vent Scoria

0.13

  

x

x

x

x

    

IIAU15-003

Vent Scoria

0.02

  

x

x

x

x

    

IIAU15-004

Vent Scoria

0.00

 

x

x

x

x

x

    

IIAU15-005

Vent Scoria

0.03

 

x

x

x

x

x

    

IIAU15-006

Vent Scoria

0.02

  

x

x

x

x

    

IIAU15-007

Vent Scoria

0.03

  

x

x

x

x

    

IIAU15-008

Vent Scoria

0.08

 

x

x

x

x

x

    

IIAU15-009

Pahoehoe 2

0.78

 

x

x

x

x

x

    

IIAU15-011

Pahoehoe 2

1.30

  

x

x

x

x

    

IIAU15-012

Pahoehoe 2

1.52

x

x

x

x

x

x

x

x

x

 

IIAU15-013

A'a 2

2.07

x

x

x

x

x

x

x

x

x

 

IIAU15-014

Pahoehoe 2

1.80

 

x

x

x

x

x

    

IIAU15-015

Pahoehoe 3

3.94

  

x

x

x

x

    

IIAU15-016

Pahoehoe 3

3.94

 

x

x

x

x

x

    

IIAU15-017

Pahoehoe 2

4.03

 

x

x

x

x

x

    

IIAU15-018

Pahoehoe 2

3.79

 

x

x

x

x

x

    

IIAU15-019

A'a 1

5.28

 

x

x

x

x

x

    

IIAU15-022

A'a 2

8.08

x

x

x

x

x

x

x

x

x

 

IIAU15-023

A'a 2

9.52

x

x

x

x

x

x

x

x

x

x

IIAU18-001

A'a 1

3.38

x

x

x

x

x

x

x

x

x

x

IIAU18-002

A'a 2

3.50

 

x

x

x

x

x

    

IIAU18-003

Vent Scoria

0.02

 

x

x

x

x

x

    

IIAU18-004

Vent Scoria

0.05

 

x

x

x

x

x

    

IIAU18-005

Vent Scoria

0.31

 

x

x

x

x

x

    

IIAU18-006

Vent Scoria

0.16

x

x

x

x

x

x

x

x

x

x

IIAU18-007

Vent Scoria

1.52

 

x

x

x

x

x

    

IIAU18-008

Vent Scoria

0.01

 

x

x

x

x

x

    

IIAU18-009

Vent Scoria

0.09

 

x

x

x

x

x

    

IIAU18-010

A'a 2

5.43

 

x

x

x

x

x

    

IIAU19-001

Pahoehoe 3

3.51

 

x

x

x

x

     

IIAU19-002

Pahoehoe 2

4.07

 

x

x

x

x

     

IIAU19-003

Pahoehoe 3

0.45

 

x

x

x

x

     

IIAU19-004

Pahoehoe 3

0.26

x

x

    

x

x

x

x

IIAU19-005

Pahoehoe 3

0.31

 

x

x

x

x

     

IIAU19-006

A'a 2

8.93

 

x

x

x

x

     

IIAU19-007

A'a 2

7.41

 

x

x

x

x

     

IIAU19-008

Pahoehoe 3

3.80

x

x

x

x

x

 

x

x

x

 

Vent Scoria

range

 

63%

15–46%

1.1–2.8 g/cm3

2.4–3.0 g/cm3

11–57%

1.97–2.2

60–67

59–68

41–59

7–34

A'a 1

range

 

85%

4–14%

2.8–3.0 g/cm3

2.9–3.0 g/cm3

0–1%

2.01–2.03

42–61

59–68

40–63

2–8

A'a 2

range

 

90–100%

2–36%

1.7–3.0 g/cm3

2.7–3.0 g/cm3

0–40%

1.95–2.01

30–59

46–70

41–65

5–7

Pahoehoe 2

range

 

86%

12–26%

2.6–3.0 g/cm3

2.6–3.0 g/cm3

0–8%

1.97–2.03

59–62

59–68

40–62

 

Pahoehoe 3

range

 

55–79%

0–32%

2.6–3.0 g/cm3

2.5–3.0 g/cm3

0–13%

1.95–2.01

58–68

58–73

41–59

5–35

(n)

  

3

3

3

3

3

6

26

11

11

34

St. Dev

  

3.5%

1.5%

0.3 g/cm3

0.1 g/cm3

0.3 g/cm3

 < 2%a

0.4

0.5

0.2

 < 0.1

  1. A summary of results are also given for each eruptive event in addition to associated uncertainties based off of repeated analyses (n) of a standard or methodology. See Additional file 1 for details
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