![]() the present investigation was made in order to know the relationship between heavy metal contents and time of irrigation with waste waters and production of CO 2 and enzymatic activity in soils from Valle Mezquital for knowing the disponibility of nutrients and degradation of soils. The soils from Valle of Mezquital, Hidalgo, Mexico have been irrigated with waste waters from Mexico City for more than 88 years. Impact of Heavy Metals in Enzymatic Activity of Soils from Hidalgo, Mexico ![]() Two of these species are non-native species (Hemidactylus frenatus Duméril and Bibron, 1836 a. These taxa represent 32 families (12 amphibian families, 20 reptile families) and 87 genera (24 amphibian genera, 63 reptile genera). The herpetofauna of Hidalgo consists of a total of 175 species: 54 amphibians (14 salamanders and 40 anurans) and 121 reptiles (one crocodile, five turtles, 36 lizards, 79 snakes). We compiled a checklist of the amphibians and reptiles of the state of Hidalgo, Mexico. (author)Īmphibians and reptiles of the state of Hidalgo, Mexico The Metztitlan scrapers made of the obsidian of Zacualtipan, Hidalgo, Mexico, were probably used for Agave juice extraction in the Late Postclassical period. SEM technique was applied to identify use wears on pre-Hispanic tools and experimental replicas. The provenance of the raw material was determined by NAA. The research was performed with archaeological obsidian scrapers, collected at the Metztitlan area, Hidalgo, Mexico. ![]() International Nuclear Information System (INIS) Provenance and use wears of Pre-Hispanic obsidian scrapers from Metztitlan, Hidalgo, Mexico This cervid is one of the very small number of mammals recorded from the poorly sampled Pliocene temperate deposits of Mexico. This species was formerly known only from the late Pliocene of Udunga, Russia, thus implying a dispersal event to North America around 4.0 Ma. The specimens were collected from a series of layers of friable to moderately indurated polymictic conglomerate supported by a sandstone-tuffaceous-calcareous matrix. ![]() We report on new fossil material of the roe deer Capreolus constantini recovered from the Pliocene Atotonilco El Grande Formation of Santa MarÃa Amajac, Hidalgo ( central Mexico. A roe deer from the Pliocene of Hidalgo, central Mexicoĭirectory of Open Access Journals (Sweden)įull Text Available Mexican Pliocene cervids are very poorly known. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
January 2023
Categories |