000086189 001 __ 86189
000086189 024 8_ $9 driver $9 artpubuab $a oai:ddd.uab.cat:86189
000086189 035 __ $9 articleid $a 16965728v1n1p95
000086189 035 __ $9 doi $a 10.1344/105.000001595
000086189 041 __ $a eng
000086189 100 __ $a Aceñolaza, G.F. $u Universidad de Tucumán. Instituto Superior de Correlación Geológica
000086189 245 1_ $a El Alisal : a new locality with trace fossils of the Puncoviscana Formation (late Precambrian-early Cambrian) in Salta Province. Argentina
000086189 520 3_ $a The Puncoviscana, Suncho and Las Aguaditas/Negro Peinado formations represent a thick siliciclastic folded succession that crops out on a strip about 800 km long and 150 km wide in northwestern Argentina (Jujuy, Salta, Tucumán, Catamarca and La Rioja provinces). These sequences are lithologically characterized by very lowgrade metamorphic sediments grading from slates to schists; turbidites, pelagic clays, limestones and volcanic rocks. On the basis of paleoichnological data, these units have been assigned to the late Precambrian-early Cambrian. A new locality bearing well preserved trace fossils from the Puncoviscana Formation is described herein. The outcrop is located about 45 km west of Salta city (Salta Province), displaying an alternation of colored differentiated grayish-bluish slates and fine sandstones. Ichnofossils include Cochlichnus anguineus HITCHCOCK, Helminthoidichnites tenuis FITCH, Helminthoida isp., Monomorphichnus lineatus CRIMES, LEGG and MARCOS ARBOLEYA, Planolites isp. and Torrowangea? isp., as well as some limb marks and a few slightly bended smooth trails (indet.). An Early Cambrian age for the succession at El Alisal as well as some environmental considerations are allowed by the ichnological association. In addition, the ichnogenus Planolites is mentioned for the first time from the “red shales and conglomerate type” facies at the neighbor locality of Chorrillos.
000086189 540 __ $a Tots els drets reservats $u http://www.europeana.eu/rights/rr-f/
000086189 594 __ $a Article de fons
000086189 655 _4 $a info:eu-repo/semantics/article
000086189 655 _4 $a info:eu-repo/semantics/publishedVersion
000086189 700 __ $a Tortello, M.F. $u Museo de La Plata
000086189 710 1_ $a Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina)
000086189 710 1_ $a Universidad de Tucumán. Facultad de Ciencias Naturales e IML
000086189 773 __ $g Vol. 1, Núm. 1 (2003), p. 95-102 $t Geologica acta $x 1696-5728
000086189 856 40 $p 8 $s 5427875 $u http://ddd.uab.cat/pub/geoact/geoact_a2003v1n1/geoact_a2003v1n1p95.pdf
000086189 973 __ $f 0095 $l 102 $m  $n 1 $v 1 $x geoact_a2003v1n1 $y 2003
000086189 980 __ $a ARTPUB $b UAB $b GEOACT