IV. 
11. Mount Margaret, Hamerslev Range, West Pilbara Gold- 
field . . . . ' 12 
12. Auriferous conglomerate, Grants Hill, Nullagine, Pil- 
bara Goldfields - . - . . . . . . . 13 
13. Boulder strewn flats. Nullagine Conglomerate, Pilbara 
Goldfield . . . . . . . . . . . . 14 
14. Basal conglomerate, Nullagine Formation, Sherlock 
River, West Pilbara Goldfield . . . . . . 15 
15. Weathered conglomerate, Nullagine Formation, 
Rooney’s Patch. Oakover River . . . . . . 15 
16. Sedimentary beds. Alount Vagahong, Alurchison Gold- 
field . . . . . . . . . . . . 16 
17. Volcanic rocks, Mount Ilann, Kimberley Division . . 17 
18. Volcanic breccia. Synnot Creek. King Leopold Plateau, 
Kimberley Division . . .... . . . . 18 
10. Stratified rocks beneath the volcanic series, FArtescue 
Gorge, Flamerslcy Range .. .. .. .. 10 
20. Dolomitic limestone, Carawine Pool. Oakover River, 
Pilbara Goldfields . . . . . . . - - - 20 
21. Fault in dolomitic limestone, near Carawine Pool, Oak- 
over River. Pilbara Goldfield . . . . . . 21 
22. Limestone cliffs, Napier Range, Derby. Kimberley 
Division . . . . . . • • • • • • ‘22 
23. Flaggy dolomitic limestone and shale, Nullagine hor- 
mation, Aloiint Russell. Last Murchison Goldfield.. 22 
24. jas])ilites, the Marble Bar, Coongan River, Pilbara Goldf’d 23 
25. Curvature in sandstone, Velina Soak, East Alurchison 
Goldfield 24 
26. Contorted Jas])ilite. Nullagine Formation, Punda Spring 24 
27. Contorted jaspilitc. Alarda, Alount Jackson, Yilgarn 
Goldfield . . . . . • • ■ • • ■ • 2;) 
28. Dolerite Dvke, Black Range, Hillside. Pilbara Goldfield 26 
20. Dolerite Sill in Sedimentary Rocks. Alount b'rew . . 2(i 
30. Ouartz Dolerite Sill resting on shales, Alonkev Creek. . 27 
3J. Sill in sedimentary rocks . . . ■ . • • ■ • • 27 
32. Laccolitic intrusion, cedar tree ty])e. Kunningina Hill.. 28 
33. Dolerite dyke cutting through reef. Oroya Black Range 
Aline. East Alurchison (ioldfield .. .. 28 
34. Gabbro Dyke, near Croydon Road Crossing. Sherlock 
River, West Pilbara Goldfield . . . . - ■ 20 
35. Generalised section along the Strelley River Gorge, 
Kimberley Division . . • • • • ■ • ■ • 30 
36. Generalised section across the Bangemall Anticline. 
Gascoyne Goldfield . . . . • • • • • ■ 31 
