Origin of the Peñalver Formation in northwestern Cuba and its relation to K/T boundary impact event

Takayama, Hideo; Tada, Ryuji; Matsui, Takafumi; Iturralde‐Vinent, Manuel A.; Oji, Tatsuo; Tajika, Eiichi; Kiyokawa, Shoichi; Garcia, D.; Okada, Hisatake; Hasegawa, Takashi; Toyoda, Kazuhiro

doi:10.1016/s0037-0738(00)00079-8

Cited by 61 publications

(41 citation statements)

References 38 publications

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“…Subunit IIb is very similar to the homogenites described by Cita et al (1996) and Takayama et al (2000), which were inferred to result from tsunami reworking of basin margin sediments. Subunit IIb would represent what Palmer and Neall (1991) called a debris avalanche, before developing into a debris flow.…”

Section: Subunit Iib-central High Island Tsunamisupporting

confidence: 64%

Early post-impact sedimentation around the central high of the Mjølnir impact crater (Barents Sea, Late Jurassic)

Dypvik¹,

Sandbakken²,

Postma³

et al. 2004

Sedimentary Geology

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Section: Subunit Iib-central High Island Tsunamisupporting

confidence: 64%

Early post-impact sedimentation around the central high of the Mjølnir impact crater (Barents Sea, Late Jurassic)

Dypvik¹,

Sandbakken²,

Postma³

et al. 2004

Sedimentary Geology

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“…The influx of seawater would have been responsible for transport and deposition of unshocked detritus into the impactite material, as observed by foraminifera microfossils and the unusually high carbonate clast content. This interpretation relates to the turbulent reworking invoked for several proximal Chicxulub ejecta sites around the Caribbean Sea (Bourgeois et al 1988;Smit et al 1992Smit et al , 1996Smit 1999;Takayama et al 2000;Tada et al 2002;Goto et al 2002;Claeys et al 2003). The resurge process has been recognized at several impact craters formed in the shallow marine realm, i.e., the Lockne (Ormö and Miyamoto 2002), Kaluga (Masaitis 2002), and Wetumpka (King et al 2002) impact craters.…”

Section: Characteristics Of the Overlying Reworked Intervalmentioning

confidence: 92%

First petrographic results on impactites from the Yaxcopoil‐1 borehole, Chicxulub structure, Mexico

Tuchscherer¹,

Reimold²,

Koeberl³

et al. 2004

Meteorit & Planetary Scien

109

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Abstract-The ICDP Yaxcopoil-1 (Yax-1) borehole located 60 km south-southwest of the center of the Chicxulub impact structure intercepted an interval of allogenic impactites (depth of 795-895 m). Petrographic analysis of these impactites allows them to be differentiated into five units based on their textural and modal variations. Unit 1 (795-922 m) comprises an apparently reworked, poorly sorted and graded, fine-grained, clast-supported, melt fragment-bearing suevitic breccia. The interstitial material, similar to units 2 and 3, is permeated by numerous carbonate veinlets. Units 2 (823-846 m) and 3 (846-861 m) are groundmass-supported breccias that comprise green to variegated angular and fluidal melt particles. The groundmass of units 2 and 3 comprises predominantly fine-grained calcite, altered alkali element-, Ca-, and Si-rich cement, as well as occasional lithic fragments. Unit 4 (861-885 m) represents a massive, variably devitrified, and brecciated impact melt rock. The lowermost unit, unit 5 (885-895 m), comprises highly variable proportions of melt rock particles (MRP) and lithic fragments in a fine-grained, carbonate-dominated groundmass. This groundmass could represent either a secondary hydrothermal phase or a carbonate melt phase, or both. Units 1 and 5 contain well-preserved foraminifera fossils and a significantly higher proportion of carbonate clasts than the other units. All units show diagnostic shock deformation features in quartz and feldspar clasts. Our observations reveal that most felsic and all mafic MRP are altered. They register extensive K-metasomatism. In terms of emplacement, we suggest that units 1 to 3 represent fallout suevite from a collapsing impact plume, whereby unit 1 was subsequently reworked by resurging water. Unit 4 represents a coherent impact melt body, the formation of which involved a significant proportion of crystalline basement. Unit 5 is believed to represent an initial ejecta/ground-surge deposit.

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“…The Cretaceous sequence of the Bahía Honda unit is completed with the hemipelagic sediments and volcanomictic turbidites of the Via Blanca Formation [Bronnimann and Rigassi, 1963] of Late Campanian -Maastrichtian age, with a thickness around 500 m [Bronnimann and Rigassi, 1963]. These sediments were deposited at an estimated water depth of between 600 and 2000 m [Takayama et al, 2000]. Finally, the calcareous, clastic layers of the Peñalver Formation [Bronnimann and Rigassi, 1963] unconformably overlie the older formations with a maximum thickness of 180 m [Takayama et al, 2000].…”

Section: Stratigraphymentioning

confidence: 99%

“…These sediments were deposited at an estimated water depth of between 600 and 2000 m [Takayama et al, 2000]. Finally, the calcareous, clastic layers of the Peñalver Formation [Bronnimann and Rigassi, 1963] unconformably overlie the older formations with a maximum thickness of 180 m [Takayama et al, 2000]. The Peñalver Formation correlates with the Cacarajícara Formation in the Sierra del Rosario unit [Pszczolkowski, 1986], and therefore it is considered to correspond to the K/T boundary [Takayama et al, 2000;Tada et al, 2003].…”

Section: Stratigraphymentioning

confidence: 99%

Structural and tectonic evolution of western Cuba fold and thrust belt

et al. 2008

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We present balanced and restored cross sections across the western Cuba fold and thrust belt to illustrate its structure and tectonic evolution, based on the interpretation of multichannel seismic profiles, field data and balancing techniques. The NNW–SSE trending Soroa cross section intersects, from south to north, (1) the Los Palacios Basin, (2) the Sierra del Rosario antiformal stack, (3) the Bahía Honda thrust unit, (4) the frontal ∼3‐km‐thick imbricated thrust sheets, and (5) the foredeep basin. At depth, a duplex that links the Sierra del Rosario unit and the frontal imbricates is defined using the thickness of the cover thrust sheets of the imbricated North American margin. The minimum calculated shortening is of 130 km in a SSE or south direction to fit large‐scale plate tectonic reconstructions. However, a more allochthonous alternative using thinner cover sequences is also discussed, which restores the Bahía Honda unit 220 km to the south of its present position. Syntectonic deposits in combination with a forward kinematic model provide a good constraint for the tectonic evolution of the orogen. The internally deformed Bahía Honda unit overthrusted the North America margin cover successions during Danian and Selandian times (∼65.5–60 Ma), before the stacking of these cover rocks during Selandian and Thanetian times (∼60–56 Ma). The growth of a large antiformal stack beneath the Sierra del Rosario occurred at early middle Eocene (∼56–45 Ma), generating about 4 km of structural relief between the paleoisland of Cuba and the synorogenic seafloor before the final infill of the foredeep.

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Origin of the Peñalver Formation in northwestern Cuba and its relation to K/T boundary impact event

Cited by 61 publications

References 38 publications

Early post-impact sedimentation around the central high of the Mjølnir impact crater (Barents Sea, Late Jurassic)

Early post-impact sedimentation around the central high of the Mjølnir impact crater (Barents Sea, Late Jurassic)

First petrographic results on impactites from the Yaxcopoil‐1 borehole, Chicxulub structure, Mexico

Structural and tectonic evolution of western Cuba fold and thrust belt

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