The document provides a summary of the geologic history and stratigraphy of Eastern and Western Paraguay. It outlines the major orogenic cycles, eras, systems, series, and formations that have defined the region from the Archean Eon to the present Holocene Epoch in 3 sentences or less for each area.

1. OROGENIC CYCLE EONO- ERA- SYSTEM SERIE GEOCR. EASTERN PARAGUAY: WESTERN PARAGUAY:
HOLOCENE Middle Quaternary - Present Middle Quaternary - Present
QUATER-
Quater-
Quater-
0,01
nary
nary
NARY
UPPER
PLEISTO- Lower Quaternary Lower Quaternary
MIDDLE
CENE
LOWER
1,6
UPPER
PLIOCENE 3,3
LOWER Upper Chaco Fm.
5,3
Upper Pirity Group
NEOGENE
UPPER 6,5
CENOZOIC
11
MIOCENE MIDDLE 15 Tertiary - Quaternary undifferentiated
16,2
Lower Chaco Fm.
LOWER 19
23
OLIGOCENE 27
PALEOGENE
36,5
Andean Cycle 39
EOCENE
45
Magm. Magm. Sta. Barbara Fm.
53
PALEOCENE 59 Acaray Fm.
Magm.
65
83 Palo Santo Fm.
Magm.
86
Asunción Group
UPPER
88
CRETACEOUS
91
Palacios Fm.
95
107 Magm.
Alto Paraná Group
Lower Pirity Group
114
LOWER 116
120
128
Adrian Jara Fm. Berta Fm.
135
139 Magm.
Southatlantic Cycle UPPER
144
152
MESOZOIC
159
JURASSIC
MIDDLE 170
Misiones Fm.
176
180
PHANEROZOIC
188
LOWER 195
201
205
210
UPPER
TRIASSIC
220
230 Cabacuá Fm.
MIDDLE 235
240
LOWER
250 Magm.
UPPER 256
PERMIAN
Palmar de las Islas
Tacuary Fm.
Indepe
Oviedo Gr. dencia
Gr.
260
n-
Chovoreca Fm.
UPPER PALEOZOIC
San Miguel Fm.
270
Group
LOWER
280 Diam. Cnel. Oviedo Ybytymi
Fm.
Cnel.
290 San José / Cabrera Fms.
CARBONFEROUS
STEPHANIAN Aquidabán Fm.
300
WESTPHALIAN
Eohercinian 310
Epeirogeny NAMURIAN
325
VISEAN
San Pedro Gr.
342
San Alfredo
TOURNAISIAN
355 Lima Fm. Upper San Alfredo Gr..
UPPER
Gr.
DEVO-
NIAN
375
MIDDLE
390
LOWER Sta. Elena Fm. Lower San Alfredo Gr.
410
PALEOZOIC
Caledonian PRIDOLIAN
SILURIAN
Epeirogeny LUDLOVIAN
424
Itacurubí Gr.
WENLOCKIAN Cariy Fm.
428
Sta. Rosa Fm.
LLANDOVERIAN Vargas Peña Fm.
Cerro León Gr.
LOWER PALEOZOIC
Boq. Fm.
438 E. Ayala Fm.
ASHGILLIAN
UPPER
Caacupé Gr.
446
ORDOVICIAN
Co. Jhu / Tobatí Fms.
CARADOCIAN La Paz Fm.
455
LLANDEILIAN- Paraguarí Fm.
LOWER
LLANVIRNIAN
470
ARENIGIAN
490
TREMADOCIAN Caapucú - San Ramón San Ramón
510 magmatites magmatites
UPPER
CAMBRIAN
523
Brasiliano Cycle MIDDLE
530
LOWER Paraguarí lutites
550
Crystalline Basement
Crystalline Basement
570 Paso Pindó metasediments
Itapucumí Gr.
650 Itapucumí Gr.
NEOPROTEROZOIC
850
PROTEROZOIC
1000 Ramos / San Luis
1200 Groups Centurión
Uruçuano Cycle MESOPROTEROZOIC Villa Florida magm. San Luis Gr.
1400
- Centurión magm.
1600
1800
Transamazonian Cycle PALEOPROTEROZOIC 2050
Basal complexes Basal complex
2300
2500 Río Apa - Río Tebicuary Río Apa
Guriense-Jequié Cycles ARCHEAN 4000
Estratigrafía del Paraguay.