Table 1 Data sets, their statistics and sources, used in the WDMAM_2 compilation

Marine data

7,193,664

−4

110

−2057/2627

11

Ishihara, T., J. Luis, M. Catalan and Y. Quesnel (t-ischihara@aist.go.jp)

France

1,488,585

0.54

32.00

−156/396

12

Le Mouël., Ann. Geophys., 26(2), 1970 & Courtillot et al.,

Earth Planet Sci. Lett., 47, 1980

Italy

439,320

11.8

59.02

−435/588

13

Chiappini et al., Annali di Geophysica, 45(5), 2000

Spain

494,171

0.02

16.66

−62/184

14

Socias, Earth Planet Sci. Lett., 105, 1991

Germany

20,815

−2.62

36.70

−96/171

15

Gerald.Gabriel@liag-hannover.de

Austria

5294

12.6

26.12

−35/137

16

GSA, (http://www.geologie.ac.at/)

Fennoscandia

3,505,857

−30

154

−580/1500

17

J. Korhonen, GTK (http://en.gtk.fi/)

United Kingdom

119,509

−2.71

121

−962/1342

18

British Geological Survey, NERC, IPR/132-01CT

Portugal

151,142

−10

33

−111/219

19

Miranda et al., Earth Planet Sci. Lett., 9, 1989

Romania

100,092

19

70

−144/418

20

Dr. L. Besutiu, Institute of Geodynamics, Romania

(http://www.geodin.ro/)

Japan (2007)

91,094

−42

73

−401/416

21

http://www.ccop.or.th/

East Asia

958,040

−28

68

−509/763

22

http://www.ccop.or.th/

Russia (vsegei)

1,688,415

0.9

158

−2274/5658

23

T. Litvinova, VSEGEI (http://www.vsegei.ru/en)

Djibouti

266,171

−2.8

85

−293/241

24

Courtillot et al., Earth Planet Sci. Lett., 47, 1980

Middle-East (2007)

1,812,464

0.56

73

−904/690

25

http://members.casema.nl/errenwijlens/itc/aaime/

India

92,784

18.5

82

−341/427

26

GSI, http://www.portal.gsi.gov.in/

Circum-Arctic

3,258,710

−4

99

−699/2754

27

Gaina, C., Werner, S.C. and the CAMP- GM group, NGU Report

2009.010

Guadeloupe

353,672

24

46

−76/190

28

IPG Paris, France, (http://www.ipgp.fr/)

French Guiana

99,066

−3.9

72

−283/143

29

BRGM, France (http://infoterre.brgm.fr/)

Bahama-Cuba

329,975

0.9

75

−410/681

30

Batista-Rodriguez, et al., Geophysics, 72(3), (doi:http://dx.doi.org/10.1190/1.271242510.1190/1.2712425)

Nure-Namag

2,012,238

−11

123

−3667/3998

31

Ravat, et al., USGS Open-file Report 2009-1258

Algeria

2,126,820

0.2

48

−189/274

32

Ministry of Energy and Mines, Algiers, Algeria

Morocco

394,179

−1.4

43

−194/207

33

Ministry of Energy and Mines, Rabat, Morocco

Nigeria

132,407

26.3

40

−163/177

34

Nigerian Geological Survey, Abuja, Nigeria

Argentina-Shelf

1,497,947

−9

45

−150/318

35

Max et al., Marine Petroleum Geology, 16, 1999.

Argentina-Inland

34,134

−1.5

104

−3152/1173

36

SEGEMAR, http://www.segemar-cba.com.ar/

Australia

7,089,164

−41.2

137

−1674/3360

37

(Milligan et al. 2010), Geosciences Australia,

http://www.ga.gov.au/data-pubs/maps

South African DC

427,270

−3.2

120

−1788/2030

38

SADC, http://www.sadc.int/

Uganda

123,020

−83

116

673/301

39

Ministry of Energy and Mineral Development, Uganda

Mozambique

419,248

159

171

−409/1007

40

Geologian Tutkimuskeskus, Espoo, Finland

SaNaBoZi

83,380

77

109

−203/756

41

SADC, http://www.sadc.int/

Acad Vernadsky

69,123

170

166

−180/426

42

Orlyuk et al., St Petersburg, July 8th-11th, Russia, 2008

Admap

56,125,472

15

104

−776/1371

43

https://www.bas.ac.uk/data/our-data/maps/map-catalogue

Marine Model

901,539

−5

152

−1662/1639

44

Dyment et al., EPSL, 430, 2015

Eurasia (2007)

540,898

−2

102

−891/819

45

GSC, http://gsc.nrcan.gc.ca/

Getech (2007)

1,038,080

1

59

−1024/536

46

GETECH, http://www.getech.com/gravity-magnetic/

GRIMM_L120

3,645,256

8

55

−235/580

47

Lesur et al., Solid Earth, 4, 2013