List of geological features on Iapetus

Most Iapetian geological features are named after characters and locations in The Song of Roland, specifically the English language translation by Dorothy L. Sayers.

Montes

A mons /ˈmɒnz/, pl. montes /ˈmɒntiːz/, is a mountain.

Mons or Montes	Coordinate	Diameter (km)	Named after	Pronunciation
Carcassone Montes	0.0°N 216.7°W / 0.0; -216.7	740.0	Carcassonne, France	/kɑːrkəˈsoʊn/
Cordova Mons	0.0°N 206.2°W / 0.0; -206.2	85.0	Córdoba, Spain	/ˈkɔːrdoʊvə/
Gayne Mons	0.0°N 176.0°W / 0.0; -176.0	65.0	Gayne, Spain
Haltile Mons	0.0°N 190.4°W / 0.0; -190.4	45.0	Haltile, Spain
Seville Mons	0.0°N 346.3°W / 0.0; -346.3	69.0	Seville, Spain	/sɪˈvɪl/
Sorence Mons	0.0°N 193.7°W / 0.0; -193.7	46.0	Castle of Pinabel
Toledo Montes	0.0°N 136.0°W / 0.0; -136.0	1100.0	Toledo, Spain	/toʊˈliːdoʊ/
Tortelosa Montes	0.0°N 64.7°W / 0.0; -64.7	294.0	Tortelosa, Spain
Valterne Mons	0.0°N 170.6°W / 0.0; -170.6	50.0	Valterne, Spain

Regiones

There is one named Iapetian regio /ˈriːdʒioʊ/ (area of distinct albedo difference), Cassini:

Regio	Coordinate	Named after	Pronounced
Cassini Regio	28.1°S 92.6°W / -28.1; -92.6 (Cassini Regio)	Giovanni Cassini, discoverer of Iapetus	/kəˈsiːni/

The adjectival form is Cassinian /kəˈsɪniən/.

Terrae

There are two named Iapetian terrae /ˈtɛriː/ (large 'land' masses).

Terra	Coordinate	Diameter (km)	Named after	Pronounced
Roncevaux Terra	37.0°N 239.5°W / 37.0; -239.5	1284.0	Battle of Roncevaux Pass	/rɒnsəˈvoʊ/
Saragossa Terra	45.0°S 180.0°W / -45.0; -180.0	2300.0	Saragossa, Spain	/særəˈɡɒsə/

The adjectival form of Roncevaux is Roncesvallian.

Craters

Named impact craters are:

Craters	Coordinate	Diameter (km)	Named after	Pronounced
Abisme	37.9°N 267.1°E / 37.9; 267.1	767.7	Saracen lord	/æˈbiːm/
Acelin	42.7°N 154.9°W / 42.7; -154.9	38.0	Aceline of Gascony	/ˈɑːsəliːn/
Adelroth	6.6°N 183.6°W / 6.6; -183.6	57.0	Marsilion’s nephew
Almeric	53.4°N 276.0°W / 53.4; -276.0	43.0	Almeric, one of the Twelve Peers
Anseïs	40.7°S 290.8°W / -40.7; -290.8	48.0	One of the Twelve Peers
Astor	14.9°N 321.2°W / 14.9; -321.2	122.0	A French baron
Baligant	16.4°N 224.9°W / 16.4; -224.9	66.0	Baligant
Basan	33.3°N 194.7°W / 33.3; -194.7	76.0	Bason
Basbrun	52.0°S 111.8°W / -52.0; -111.8	80.0	Charlemagne’s officer
Basile	0.7°S 187.9°W / -0.7; -187.9	6.0	French baron
Berenger	62.1°N 219.7°W / 62.1; -219.7	84.0	Bérengier
Besgun	76.0°N 309.8°W / 76.0; -309.8	56.0	Besgun
Bevon	70.7°N 93.0°W / 70.7; -93.0	48.0	French baron
Bramimond	38.0°N 178.0°W / 38.0; -178.0	200.0	Bramimonde
Charlemagne	55.0°N 258.8°W / 55.0; -258.8	95.0	Charlemagne	/ˈʃɑːrlɪmeɪn/
Clarin	18.3°N 71.6°W / 18.3; -71.6	84.0	Saracen lord
Climborin	30.4°N 116.9°W / 30.4; -116.9	49.0	Saracen lord
Corsablis	0.9°N 114.2°W / 0.9; -114.2	73.0	Saracen lord
Dapamort	36.6°N 84.9°W / 36.6; -84.9	49.0	Saracen king
Engelier	40.5°S 264.7°W / -40.5; -264.7	504.0	One of the Twelve Peers
Escremiz	1.6°N 173.5°W / 1.6; -173.5	0.06	Escremiz of Valterne
Eudropin	0.9°N 220.7°W / 0.9; -220.7	42.0	Saracen lord
Falsaron	33.8°N 82.6°W / 33.8; -82.6	424.0	Brother of King Marsilion
Ganelon	44.3°S 19.8°W / -44.3; -19.8	230.0	Ganelon
Garlon	3.2°S 240.5°W / -3.2; -240.5	47.0	Saracen lord
Geboin	58.6°N 173.4°W / 58.6; -173.4	81.0	Geboin
Gerin	45.6°S 233.0°W / -45.6; -233.0	445.0	One of the Twelve Peers
Godefroy	71.9°N 249.1°W / 71.9; -249.1	63.0	Godefroy
Grandoyne	17.7°N 214.5°W / 17.7; -214.5	65.0	Grandoyne
Hamon	10.6°N 270.0°W / 10.6; -270.0	96.0	Hamon
Ivon	18.0°N 315.0°W / 18.0; -315.0	100.0	One of the Twelve Peers
Johun	12.4°N 83.4°W / 12.4; -83.4	64.0	Johun of Outremer; Saracen lord
Jurfaleu	13.0°N 2.5°W / 13.0; -2.5	107.0	Son of Marsilion
Lorant	65.2°N 159.8°W / 65.2; -159.8	44.0	Lorant
Malprimis	15.2°S 118.2°W / -15.2; -118.2	377.0	Saracen lord
Malun	5.9°N 41.3°W / 5.9; -41.3	121.0	Saracen lord
Margaris	27.7°N 135.8°W / 27.7; -135.8	75.0	Saracen lord	/mɑːrˈɡærɪs/ ?
Marsilion	39.2°N 176.1°W / 39.2; -176.1	136.0	Marsilion	/mɑːrˈsɪliən/
Matthay	3.5°S 187.4°W / -3.5; -187.4	58.0	Saracen lord
Milon	67.9°N 207.2°W / 67.9; -207.2	119.0	Milon
Naimon	9.3°N 329.3°W / 9.3; -329.3	244.0	Naimon
Nevelon	33.2°S 197.0°W / -33.2; -197.0	49.0	Shares command of Charlemagne’s sixth division
Ogier	42.5°N 275.1°W / 42.5; -275.1	100.0	Ogier the Dane
Oliver	62.5°N 200.8°W / 62.5; -200.8	113.0	Olivier	/ˈɒlɪvər/
Othon	33.3°N 347.8°W / 33.3; -347.8	86.0	Othon
Pinabel	39.0°S 33.0°W / -39.0; -33.0	83.0	Pinabel
Priamon	1.5°N 187.0°W / 1.5; -187.0	17.0	Saracen lord
Rabel	64.4°S 166.2°W / -64.4; -166.2	91.0	French baron	/ˈræbəl/
Roland	73.3°N 25.2°W / 73.3; -25.2	144.0	Roland	/ˈroʊlənd/
Rugis	0.1°S 99.0°W / -0.1; -99.0	19.0	Saracen lord	/ˈruːdʒɪs/
Samson	6.5°N 298.6°W / 6.5; -298.6	33.0	One of the Twelve Peers	/ˈsæmsən/
Thierry	55.0°S 8.0°W / -55.0; -8.0	110.0	French knight, friend of Roland
Tibbald	57.0°N 358.0°W / 57.0; -358.0	160.0	Tibbald of Reims	/ˈtɪbəld/
Timozel	9.9°S 212.3°W / -9.9; -212.3	58.0	Saracen lord
Torleu	0.2°S 188.4°W / -0.2; -188.4	8.0	Leader in Baligant’s army
Turgis	16.9°N 28.4°W / 16.9; -28.4	580.0	Saracen baron	/ˈtɜːrdʒɪs/
Turpin	47.7°N 1.4°W / 47.7; -1.4	87.0	Turpin	/ˈtɜːrpɪn/
Valdebron	29.6°N 104.4°W / 29.6; -104.4	49.0	Saracen lord

References

• Mackey & Mackey, 1922, The Pronunciation of 10,000 Proper Names, Dodd, Mead & Co., New York

External links

• USGS: Iapetus nomenclature
• JPL: Iapetus Global Maps