Chapters (96)
- Geological Observations on the Volcanic Islands
- EDITORIAL NOTE
- G.T.B.
- VOLCANIC ISLANDS.
- DETAILED TABLE OF CONTENTS
- I.—ST. JAGO, IN THE CAPE DE VERDE ARCHIPELAGO.
- II.—FERNANDO NORONHA; TERCEIRA; TAHITI, ETC.
- III.—ASCENSION.
- IV.—ST. HELENA.
- V.—GALAPAGOS ARCHIPELAGO.
- VI.—TRACHYTE AND BASALT.—DISTRIBUTION OF VOLCANIC ISLES.
- VII.—AUSTRALIA; NEW ZEALAND; CAPE OF GOOD HOPE.
- INDEX.
- GEOLOGICAL OBSERVATIONS ON VOLCANIC ISLANDS.
- CRITICAL INTRODUCTION.
- JOHN W. JUDD.
- CHAPTER I. ST. JAGO, IN THE CAPE DE VERDE ARCHIPELAGO.
- (FIGURE 1: MAP 1: PART OF ST. JAGO, ONE OF THE CAPE DE VERDE ISLANDS.)
- MINERALOGICAL DESCRIPTION OF THE ROCKS OF THE LOWEST SERIES.
- THE EXTENT AND HORIZONTALITY OF THE CALCAREOUS STRATUM.
- THE BASALTIC LAVA, SUPERINCUMBENT ON THE CALCAREOUS DEPOSIT.
- SIGNAL POST HILL.
- INLAND HILLS OF MORE ANCIENT VOLCANIC ROCKS.
- VALLEYS NEAR THE COAST.
- RECENT CONGLOMERATE.
- CHAPTER II. FERNANDO NORONHA; TERCEIRA; TAHITI, ETC.
- FERNANDO NORONHA.
- TERCEIRA IN THE AZORES.
- EFFECTS OF STEAM ON THE TRACHYTIC ROCKS.
- TAHITI (OTAHEITE).
- MAURITIUS.
- ST. PAUL’S ROCKS.
- A GLOSSY INCRUSTATION.
- CHAPTER III. ASCENSION.
- (MAP 2: THE ISLAND OF ASCENSION.)
- BASALTIC ROCKS.
- VOLCANIC BOMBS.
- AERIFORM EXPLOSIONS.
- EJECTED GRANITIC FRAGMENTS.
- TRACHYTIC SERIES OF ROCKS.
- VEINS IN THE EARTHY TRACHYTIC MASSES.
- SILICEOUS SINTER AND JASPER.
- CONCRETIONS IN PUMICEOUS TUFF.
- FORMATION OF CALCAREOUS ROCKS ON THE SEA-COAST.
- A FRONDESCENT CALCAREOUS INCRUSTATION.
- SINGULAR LAMINATED BEDS ALTERNATING WITH AND PASSING INTO OBSIDIAN.
- FIRST.
- SECONDLY.
- THIRDLY.
- FOURTHLY.
- FIFTHLY.
- LAMINATION OF VOLCANIC ROCKS OF THE TRACHYTIC SERIES.
- CHAPTER IV. ST. HELENA.
- BASALTIC SERIES.
- BASAL SUBMARINE LAVAS.
- FLAGSTAFF HILL AND THE BARN.
- TURK’S CAP AND PROSPEROUS BAYS.
- BASALTIC RING.
- THE CENTRAL CURVED RIDGE.
- SUPERFICIAL DEPOSITS.
- BEDS OF EXTINCT LAND-SHELLS.
- ELEVATION OF THE LAND.
- COAST DENUDATION.
- CRATERS OF ELEVATION.
- CHAPTER V. GALAPAGOS ARCHIPELAGO.
- (FIGURE 11. MAP 3. GALAPAGOS ARCHIPELAGO.
- CHATHAM ISLAND. CRATERS COMPOSED OF A SINGULAR KIND OF TUFF.
- (FIGURE 12. THE KICKER ROCK, 400 FEET HIGH.)
- SMALL BASALTIC CRATERS.
- ALBEMARLE ISLAND.
- FLUIDITY OF DIFFERENT LAVAS.
- CRATERS OF TUFF.
- BANKS’ COVE.
- JAMES ISLAND.
- SEGMENT OF A BASALTIC CRATER.
- PSEUDO-EXTRANEOUS, EJECTED FRAGMENTS.
- CONCLUDING REMARKS ON THE TUFF-CRATERS.
- MINERALOGICAL COMPOSITION OF THE ROCKS.
- ELEVATION OF THE LAND.
- DIRECTION OF THE FISSURES OF ERUPTION.
- CHAPTER VI. TRACHYTE AND BASALT.—DISTRIBUTION OF VOLCANIC ISLES.
- ON THE DISTRIBUTION OF VOLCANIC ISLANDS.
- CHAPTER VII. AUSTRALIA; NEW ZEALAND; CAPE OF GOOD HOPE.
- NEW SOUTH WALES.
- STRATIFICATION OF THE ESCARPMENT.
- CURRENT-CLEAVAGE.
- VALLEYS IN THE SANDSTONE PLATFORMS.
- VAN DIEMEN’S LAND.
- TRAVERTIN WITH EXTINCT PLANTS.
- ELEVATION OF THE LAND.
- KING GEORGE’S SOUND.
- SUPERFICIAL FERRUGINOUS BEDS.
- SUPERFICIAL CALCAREOUS DEPOSIT.
- CAPE OF GOOD HOPE.
- SANDSTONE FORMATION.
- INDEX TO VOLCANIC ISLANDS.
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