Sample localities are plotted in Figure 2 and microfossil species that we recorded

Transcription

1 1 2 3 Data Repository item Micropaleontologic Data Encinas et al Sample localities are plotted in Figure 2 and microfossil species that we recorded from outcrops and well samples of the Santo Domingo Formation are listed in Tables DR1 DR6. Well and outcrop samples are separated in different tables and ordered by geographic location from north to south. Benthic foraminifera and ostracodes indicative of deep-water deposition, and planktic foraminifera indicative of biostratigraphic age, are grouped separately in these tables. Foraminifera listed by previous authors are also indicated. Age and paleodepth interpretations of the samples are presented in Tables DR5 and DR6. Well samples were borrowed from ENAP and most were represented by micropaleontologic slides containing unmounted foraminifera that they had picked from washed residues of cuttings. We processed available core material as well as our outcrop samples using conventional techniques to isolate foraminifera and ostracodes. Some of the ENAP wells not only transected the Santo Domingo Formation but also a subjacent coal-bearing unit (see Geologic Setting). Some of its coaly intervals yielded internal molds of specimens that included those ascribed to the Eocene planktic foraminiferal genus Globigerinatheka by Finger and Encinas (2009). We extrapolated this by assigning an Eocene? age to all coaly intervals barren of these foraminiferal steinkerns, including those that had a few better-preserved Miocene specimens that were obviously caved downhole

2 CAPTIONS Table DR1. Checklist of planktic foraminifers in borehole sections. Shaded rows indicate intervals devoid of planktic foraminifers. Asterisk denotes occurrences that are probably cavings. Table DR2. Checklist of planktic foraminifers in outcrop samples (this study) and reported in previous studies. Shaded rows indicate samples devoid of planktic foraminifers. *Globigerinoides trilobus is synonymized with Gln. quadrilobatus. Table DR3. Checklist of deep-water benthic foraminifers and ostracodes in borehole sections. Species categorized according to their upper-depth limits. Shaded rows indicate intervals devoid of benthic microfossils. Asterisk denotes occurrences that are probably cavings. Table DR4. Checklist of benthic foraminifers and ostracodes in outcrop samples (this study) and reported in previous studies. Species categorized according to their upper-depth limits. Shaded rows indicate intervals devoid of benthic microfossils. Table DR5. Summary of planktic foraminiferal biostratigraphy and benthic foraminiferal paleoenvironments of the well sample intervals worked in this study, with supplementary notes. Table DR6. Summary of biostratigraphic and paleoenvironmental interpretations of the outcrops worked in this study, and interpretations of previous studies on the Santo Domingo Formation, with supplementary notes.

3 Planktic Foraminifera Depth (m) Catapsydrax dissimilis Globigerina bulloides Globigerina druryi Globigerina falconensis Globigerina praebulloides Globigerina venezuelana Los Pinos Cholchol Cholchol Labranza ; Labranza Labranza Labranza Labranza Labranza Labranza Catamutun B Rahue Rahue Bellavista Core Huilma Core Huilma Rio Blanco Core Tegualda Colegual Globigerinella aequilateralis Globigerinella obesa Core Core Colegual Los Muermos Los Muermos Puerto Montt Core * * * Globigerinita uvula Globigerinoides quadrilobatus Globigerinoides sacculifer Globoquadrina dehiscens Globorotalia conomiozea Globorotalia fohsi foshsi Globorotalia humerosa Globorotalia mayeri Globorotaloides hexagona Globoturborotalita woodi Globoturborotalita woodi apertura Neogloboquadrina continuosa Neogloboquadrina pachyderma Orbulina universa Globigerinatheka (Eocene)

4 Source of Data CSD1 CSD2 CR1 PC1 PC2 PH1 Outcrops CT1 BM1a BM1b BM2 RCH1 PO1 PQ1 Martínez-Pardo and Pino (1979) Marchant and Pineda (1988) Marchant (1990) Osorio and Elgueta (1990) Planktic Foraminifera Catapsydrax dissimilis Globigerina bulloides Globigerina druryi Globigerina falconensis Globigerina praebulloides Globigerina venezuelana Globigerinella aequilateralis Globigerinella obesa Globigerinita uvula Globigerinoides quadrilobatus* Globigerinoides sacculifer Globoquadrina dehiscens Globorotalia conomiozea Globorotalia fohsi foshsi Globorotalia humerosa Globorotalia mayeri Globorotaloides hexagona Globoturborotalita woodi Globoturborotalita woodi-apertura Neogloboquadrina continuosa Neogloboquadrina pachyderma Orbulina universa Globigerinatheka (Eocene)

5 Bathymetric Zone: Depth Interval (m): Outer Neritic Shelf Edge Upper Bathyal Upper Middle Bathyal Lower Mid. Bathyal Lower Bathyal Psychro spheric Ostracodes Benthic Foraminifera Cibicidoides bradyi Cibicidoides mediocris Globocassidulina subglobosa Marginulinopsis spp. Plectofrondicularia parri Proxifrons foliacea Pullenia subcarinata Saracenaria senni Spirosigmoilina tenuis Trifarina angulosa Globobulimina galliheri Hoeglundina elegans Praeglobobulimina spp. Ammodiscus discoideus Bolivina spp. (most) Bulimina spicata Chilostomella ovoidea Ciperozoa spp. Dorothia spp. Karreriella spp. Martinottiella communis Oridorsalis tener Pullenia bulloides Rectuvigerina transversa Uvigerina schwageri (from N to S) Depth (m) Los Pinos Cholchol Cholchol Labranza ; Labranza Labranza Labranza Labranza Labranza Labranza Catamutun-B Rahue Rahue Bellavista Core Huilma Core Huilma Rio Blanco Core Tegualda Colegual Core Core Colegual Los Muermos Los Muermos Puerto Montt Core * * * * Astacolus crepidulus Cibicidoides compressus Cyclammina incisa Dentalina flintii Ehrenbergina fyfei Eggerella bradyi Favulina hexagona Fissurina spp. Fontbotia wuellerstorfi Glandulina laevigata Gyroidina spp. Hansenisca spp. Laticarinina pauperata Mediamonella bradyi Melonis barleeanus Neouvigerina hispida Nodosaria longiscata Oolina apiculata Pyrgo depressa Pyrgo murrhina Sphaeroidina bulloides (medium sized) Uvigerina subperegrina Pleurostomella spp. Pseudoglandulina sp. Pseudonodosaria sp. Bathysiphon spp. Ellipsopolymorphina schlichti Melonis pompilioides f. sphaeroides Osangularia bengalensis Pyramidulina acuminata Siphonodosaria hispidula Siphonodosaria sagrinensis Agrenocythere cf. A. hazelae Bradyleya normanni Bradyleya sp. Bythoceratina sp. Krithe spp. Legitimocythere acanthoderma

6 Bathymetric Zone: Depth Interval (m): Outer Neritic Shelf Edge Upper Bathyal Upper Middle Bathyal Lower Mid. Bathyal Lower Bathyal Psychrospheric Ostracodes Source of Data Benthic Foraminifera CSD1 CSD2 CR1 PC1 PC2 Outcrops PH1 CT1 BM1a BM1b BM2 RCH1 PO1 PQ1 Martínez-Pardo and Pino (1979) Marchant and Pineda (1988) Marchant (1990) Osorio and Elgueta (1990) Cibicidoides bradyi Cibicidoides mediocris Globocassidulina subglobosa Marginulinopsis spp. Plectofrondicularia parri Proxifrons foliacea Pullenia subcarinata Saracenaria senni Spirosigmoilina tenuis Trifarina angulosa Globobulimina galliheri Hoeglundina elegans Praeglobobulimina spp. Ammodiscus discoideus Bolivina spp. (most) Bulimina spicata Chilostomella ovoidea Ciperozoa spp. Dorothia spp. Karreriella spp. Martinottiella communis Oridorsalis tener Pullenia bulloides Rectuvigerina transversa Uvigerina schwageri Astacolus crepidulus Cibicidoides compressus Cyclammina incisa Dentalina flintii Ehrenbergina fyfei Eggerella bradyi Favulina hexagona (Monospecific assemblage of Haplophragmoides; probably bathyal) Fissurina spp. Fontbotia wuellerstorfi Glandulina laevigata Gyroidina spp. Hansenisca spp. Laticarinina pauperata Mediamonella bradyi Melonis barleeanus Neouvigerina hispida Nodosaria longiscata Oolina apiculata Pyrgo depressa Pyrgo murrhina Sphaeroidina bulloides (medium-sized) Uvigerina subperegrina Pleurostomella spp. Pseudoglandulina sp. Pseudonodosaria sp. Bathysiphon spp. Cornuspiroides foliacea Ellipsopolymorphina schlichti Melonis pompilioides f. sphaeroides Osangularia bengalensis Pyramidulina acuminata Siphonodosaria hispidula Nodogenerina sagrinensis Agrenocythere cf. A. hazelae Bradyleya normanni Bradyleya sp. Bythoceratina sp. Krithe spp. Legitimocythere acanthoderma

7 Depth (m) Age Minimum Depth of Deposition Notes Los Pinos Miocene lower bathyal : Last of Mio fauna; : undiagnostic ?? No slides Eocene transitional Coal at Cholchol Eocene transitional Caved Miocene forams. Cholchol Miocene lower bathyal Eocene transitional Labranza ; Miocene lower bathyal Weak (caved?) assemblages Labranza Miocene lower bathyal No samples Eocene? indeterminate indet.; first coal at Labranza Miocene lower bathyal Labranza Miocene lower bathyal Labranza Middle Miocene lower bathyal Labranza Miocene* u. middle bathyal* *Based on relatively weak assemblages Eocene? indet. Preservation suggests Eocene; no identifiable specimens. Labranza Miocene lower bathyal Eocene indeterminate Eoc. planktics present, but most forams are caved Mio. Catamutun-B Miocene lower bathyal Rahue Miocene lower bathyal Rahue Eocene? transitional Coal at 9 24, then mostly lithic fragments. Bellavista Miocene lower bathyal Core Miocene lower bathyal Eocene? transitional? Very coarse angular sand; last foram Eocene? transitional Presence of coal Huilma Miocene lower bathyal First coal at Eocene transitional Core Eocene? transitional Coal but no Eocene forams. Huilma Miocene lower bathyal No samples Eocene? transitional 465 and below have coal; and few Miocene forams caved. Rio Blanco Miocene lower bathyal Core Miocene lower bathyal Tegualda Late Miocene lower bathyal No slides (no forams) Eocene? transitional Coal; all forams Miocene, probably caved. Colegual Miocene lower bathyal Miocene? bathyal Core Miocene lower bathyal Core Miocene lower bathyal Colegual indeterminate indeterminate No samples between Eocene transitional Los Muermos Miocene lower bathyal Los Muermos Miocene lower bathyal Puerto Montt indeterminate Inner neritic Molluscan & bryozoan debris ?? No samples Eocene transitional Coal at 625; caved Miocene forams mostly at top. Core Miocene lower bathyal Age does not match with that of cutting intervals Eocene? transitional Sandstone, molluscan & bryozoan debris, few forams; flood of Rectuvigerina internal molds at

8 Source of Data Age Minimum Depth of Deposition Notes CSD1 indeterminate lower bathyal No planktics CSD2 indeterminate lower bathyal No planktics CR1 indeterminate lower bathyal No planktics PC1 Miocene lower bathyal PC2 indeterminate lower bathyal 4 planktic specimens PH1 indeterminate lower bathyal Very weak assemblage. Outcrops CT1 indeterminate upper middle bathyal No planktics BM1a indeterminate lower bathyal No planktics BM1b indeterminate lower bathyal 4 planktic specimens BM2 indeterminate indeterminate No planktics; monospecific assemblage of Haplophragmoides. RCH1 indeterminate upper middle bathyal Cyclammina only PO1 indeterminate lower bathyal 4 planktic specimens PQ1 Late? Miocene lower bathyal Mostly neritic species Martínez-Pardo and Pino (1979) Middle Late Miocene lower bathyal All planktic species reported as 'cf.' Marchant and Pineda (1988) Late Miocene present upper middle bathyal Marchant (1990) Late Miocene present lower middle bathyal Osorio and Elgueta (1990) Late? Miocene lower bathyal