Dynamics of Late Cretaceous Rocky Shores (Rosario Formation) from Baja California, Mexico

Palaios ◽  
1991 ◽  
Vol 6 (2) ◽  
pp. 126 ◽  
Author(s):  
Halard L. Lescinsky ◽  
Jorge Ledesma-Vazquez ◽  
Markes E. Johnson
Keyword(s):  
Late Cretaceous ◽  
Baja California ◽  
Rocky Shores

Erratum: Dynamics of rocky shores: Cretaceous, Pliocene, Pleistocene, and Recent, Baja California peninsula, Mexico

2006 ◽  
Vol 43 (9) ◽  
pp. 1389
Author(s):  
Jorge Ledesma-Vázquez ◽  
Rafael Hernández-Walls ◽  
Monique Villatoro-Lacouture ◽  
Rigoberto Guardado-France
Keyword(s):  
Baja California ◽  
Baja California Peninsula ◽  
Rocky Shores

scholarly journals The Lambeosaurine Dinosaur Magnapaulia laticaudus from the Late Cretaceous of Baja California, Northwestern Mexico

PLoS ONE ◽  
2012 ◽  
Vol 7 (6) ◽  
pp. e38207 ◽  
Author(s):  
Albert Prieto-Márquez ◽  
Luis M. Chiappe ◽  
Shantanu H. Joshi
Keyword(s):  
Late Cretaceous ◽  
Baja California ◽  
Northwestern Mexico

Baja California: Late Cretaceous Dinosaurs

Science ◽  
1967 ◽  
Vol 155 (3769) ◽  
pp. 1539-1541 ◽  
Author(s):  
W. J. Morris
Keyword(s):  
Late Cretaceous ◽  
Baja California

Ichnology of Late Cretaceous Turbidites from the Rosario Formation, Baja California, Mexico

Ichnos ◽  
2013 ◽  
Vol 20 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Richard H. T. Callow ◽  
Duncan McIlroy ◽  
Ben Kneller ◽  
Mason Dykstra
Keyword(s):  
Late Cretaceous ◽  
Baja California

scholarly journals Holocene Hurricane Deposits Eroded as Coastal Barriers from Andesite Sea Cliffs at Puerto Escondido (Baja California Sur, Mexico)

2020 ◽  
Vol 8 (2) ◽  
pp. 75 ◽  
Author(s):  
Markes E. Johnson ◽  
Erlend M. Johnson ◽  
Rigoberto Guardado-France ◽  
Jorge Ledesma-Vázquez
Keyword(s):  
Wave Height ◽  
Gulf Of California ◽  
Baja California ◽  
Average Weight ◽  
Rocky Shores ◽  
Coastal Evolution ◽  
Physical Geology ◽  
Boulder Deposits ◽  
Sea Cliffs

Previous studies on the role of hurricanes in Mexico’s Gulf of California examined coastal boulder deposits (CBDs) eroded from limestone and rhyolite sea cliffs. Sedimentary and volcanic in origin, these lithotypes are less extensively expressed as rocky shores than others in the overall distribution of gulf shores. Andesite that accumulated as serial volcanic flows during the Miocene constitutes by far the region’s most pervasive rocky shores. Here, we define a subgroup of structures called barrier boulder deposits (BBDs) that close off lagoons as a result of lateral transport from adjacent rocky shores subject to recurrent storm erosion. Hidden Harbor (Puerto Escondido) is the most famous natural harbor in all of Baja California. Accessed from a single narrow entrance, it is commodious in size (2.3 km2) and fully sheltered by outer andesite hills linked by two natural barriers. The average weight of embedded boulders in a succession of six samples tallied over a combined distance of 710 m ranges between 74 and 197 kg calculated on the basis of boulder volume and the specific gravity of andesite. A mathematical formula is utilized to estimate the wave height necessary to transport large boulders from their source. Average wave height interpreted by this method varies between 4.1 and 4.6 m. Input from fossil deposits and physical geology related to fault trends is applied to reconstruct coastal evolution from a more open coastal scenario during the Late Pleistocene 125,000 years ago to lagoon closure in Holocene time.

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