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Scott A. Mata
University of Southern California
GeomorphologyGeologyPaleontologyPhanerozoicSiliciclastic
10Publications
7H-index
299Citations
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Publications 10
Newest
#1Carlie Pietsch (SC: University of Southern California)H-Index: 4
#2Scott A. Mata (SC: University of Southern California)H-Index: 7
Last. David J. Bottjer (SC: University of Southern California)H-Index: 59
view all 3 authors...
The end-Permian mass extinction event was the greatest loss of biodiversity ever experienced on the planet. The event is thought to have been triggered by the initiation of the volcanic eruptions of the Siberian Traps. The five million year recovery interval that followed the extinction event was strongly influenced by the environmental effects of sustained volcanic eruptions including extreme temperature events and persistent global and regional oxygen minimum zones. The effects of these enviro...
19 CitationsSource
#1Scott A. Mata (SC: University of Southern California)H-Index: 7
#2David J. Bottjer (SC: University of Southern California)H-Index: 59
Assessing the role that physical processes play in restricting microbial mat distribution has been difficult due to the primary control of bioturbation in the modern ocean. To isolate and determine the physical controls on microbial mat distribution and preservation, a time in Earth’s history must be examined when bioturbation was not the primary control. This restricts the window of observation primarily to the Precambrian and Cambrian, which precede the development of typical Phanerozoic and m...
5 CitationsSource
#1Scott A. Mata (SC: University of Southern California)H-Index: 7
#2Cara L. CorsettiH-Index: 1
Last. David J. Bottjer (SC: University of Southern California)H-Index: 59
view all 5 authors...
Large (up to 7 cm in diameter) and deep-penetrating (up to 30 cm) vertical burrows are described from the lower Cambrian Wood Canyon Formation of the Death Valley region, United States, and their paleoenvironmental and paleoecological implications are addressed. Trace fossils occur as dense populations that precede the earliest occurrences of Skolithos pipe rock in the region. These trace fossils are assigned to the ichnogenera Bergaueria, Conichnus, and Dolopichnus, and each represents the burr...
15 CitationsSource
#1Scott A. Mata (SC: University of Southern California)H-Index: 7
#2Cara L. Harwood (UC Davis: University of California, Davis)H-Index: 5
Last. John R. Spear (Colorado School of Mines)H-Index: 36
view all 7 authors...
Alternating light-dark laminae within stromatolites have been attributed to a phototactic response of the constituent microbial communities, whereby filaments orient vertically during the day and recline at night. This study examines the orientation of cyanobacterial filaments within a laminated siliceous stromatolite from a Yellowstone National Park hot spring to identify the controls on microfabric development and whether phototaxis plays a role. Results indicate that filament orientation is p...
34 CitationsSource
#1John-Paul Zonneveld (U of A: University of Alberta)H-Index: 15
#2Murray K. Gingras (U of A: University of Alberta)H-Index: 41
Last. Jesse Schoengut (U of A: University of Alberta)H-Index: 1
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Abstract The ichnology of mixed siliciclastic/carbonate successions, in which sediment admixture has had a clear effect on infaunal populations, is discussed. Fundamental influences that allow for the development of unique ichnological signatures in mixed systems include grain size, grain shape, and early diagenetic alteration. Shell debris within dominantly siliciclastic successions introduces complexities into the infaunal habitat that are clearly reflected in trace-fossil assemblages. Some di...
6 CitationsSource
#1Scott A. Mata (SC: University of Southern California)H-Index: 7
#2David J. Bottjer (SC: University of Southern California)H-Index: 59
Widespread development of microbialites characterizes the substrate and ecological response during the aftermath of two of the ‘big five’ mass extinctions of the Phanerozoic. This study reviews the microbial response recorded by macroscopic microbial structures to these events to examine how extinction mechanism may be linked to the style of microbialite development. Two main styles of response are recognized: (i) the expansion of microbialites into environments not previously occupied during th...
71 CitationsSource
#1Scott A. MataH-Index: 7
Last. David J. BottjerH-Index: 59
view all 5 authors...
#1Scott A. Mata (SC: University of Southern California)H-Index: 7
#2David J. Bottjer (SC: University of Southern California)H-Index: 59
Abstract Studies aimed at understanding the recovery from the end-Permian mass extinction have focused on the distribution of faunas, trace fossils, and microbialites across depositional environments, but few have examined how these individual ecologic components relate to one another, especially the latter relationship between microbialites and trace fossils, which appear to be mutually exclusive. Microbialites occur throughout Lower Triassic strata primarily in two different forms depending on...
53 CitationsSource
Abstract Wrinkle structures are microbially mediated sedimentary structures that are a common feature of Proterozoic and earliest Phanerozoic siliciclastic seafloors on Earth and occur only rarely in post-Cambrian strata. These macroscopic microbially induced sedimentary structures are readily identifiable at the outcrop scale, and their recognition on other planetary bodies by landed missions may suggest the presence of past microbial life. Wrinkle structures of the Lower Triassic (Spathian) Vi...
18 CitationsSource
#1Scott A. Mata (SC: University of Southern California)H-Index: 7
#2David J. Bottjer (SC: University of Southern California)H-Index: 59
Abstract Wrinkle structures are microbially induced sedimentary structures that are known to have formed in ancient marine siliciclastic environments. This study reviews the sedimentary context and paleoenvironmental distribution of these sedimentary structures throughout three distinct intervals of the Phanerozoic: the Cambrian, the post-Cambrian Paleozoic, and the Lower Triassic. During these times, wrinkle structures are found primarily within two sedimentary environments, storm-dominated sub...
51 CitationsSource
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