排序方式: 共有4条查询结果,搜索用时 15 毫秒
1
1.
María Jimena Franco Mariana Brea Ana María Zavattieri 《Alcheringa: An Australasian Journal of Paleontology》2013,37(1):8-23
The first Miocene records of silicified fossil woods from the Mariño Formation, Potrerillos area, Andes Precordillera, Mendoza province, Argentina are described. Rhaphithamnoxylon artabeae gen. et sp. nov. is described as the first fossil wood referable to Verbenaceae from Argentina. This new fossil species is related to extant Rhaphithamnus Miers, sharing the following anatomical features: diffuse porosity, distinct growth ring boundaries, numerous small to very small vessels, commonly in radial multiples, 1–3 seriate rays, and heterocellular and scarce paratracheal axial parenchyma. Rhaphithamnus contains only two extant species: R. spinosus (A.L. Juss.) Moldenke, which occurs in the Valdivian forests of Chile and Argentina, and R. venustus (Philippi) Robinson, which is endemic to the Juan Fernández Islands. Representatives of Verbenaceae are distributed predominantly in the Americas from Patagonia (Argentina) to Canada, and they are inferred to have originated in South America. The fossil wood described herein provides new age and geographical constraints on the raphithanoid lineage within Verbenaceae. Other fossil woods recorded from the Mariño level are retained under open nomenclature, as they possess a combination of mostly solitary broad vessels, and smaller vessels in radial multiples or in clusters, with numerous, vasicentric to confluent axial parenchyma, and heterocellular, high rays. Thus, they have features akin to dicotyledonous lianas or vine-like or small shrub species. 相似文献
2.
Jimena Oría Mónica Salemme Martín Vázquez 《Archaeological and Anthropological Sciences》2016,8(2):291-304
The archaeological record of the northern steppe in Tierra del Fuego (Argentina) is characterized by the occurrence of concentrations of archaeological material at the ground surface, coming from gullies and deflation hollows related to shallow lake coastal environments. This particular distribution becomes a challenge concerning the study of site formation processes, particularly in relation to the burial and exhumation of archaeological materials. Bone assemblages coming from three archaeological contexts (Tres Marías, Amalia 4 and Arturo 1) are analysed here, pointing to the features, damage and stability or movements that reveal their taphonomic histories. Geomorphological landscapes vary from each site, being represented by deflation hollows close to shallow lakes as well as gullies originating from the coast itself. The faunal assemblages are mostly dominated by Lama guanicoe bones. Variability in taxonomic composition, weathering profiles, mobility and stability of materials, as well as evidence of anthropic modifications, among other records, demonstrate the existence of different depositional events. The high variability observed suggests that several pre- and post-depositional processes were involved; thus, it results in complex taphonomic histories and low integrity that make their interpretation difficult in terms of human activities. 相似文献
3.
Jimena Silva-Segovia Paulina Salinas-Meruane 《Gender, place and culture : a journal of feminist geography》2016,23(12):1677-1688
This research analyzes emotional adjustments and imbalances experienced by female partners of Chilean mining workers, resulting from interacting demands of work, intimacy, family, and handling money, as well as tensions caused by miners’ prolonged absences and dissimilar schedules, negatively impacting family encounters. The research is circumscribed in northern Chile, in the Region of Antofagasta, epicenter of worldwide copper mining. Through a qualitative design, 36 in-depth interviews were held and a sociodemographic survey of mining workers’ partners. Among the findings are power conflicts derived from the role that workers and female partners have as a couple, in managing money and in emotional aspects, exacerbated by gender constructions of ‘the paid miner’ and ‘female partner’. Female partners express their challenges in managing the family’s economic resources as well as emotional aspects between the partners. 相似文献
4.
Jimena Lobo Guerrero Arenas Umberto Veronesi Harriet White 《Post-Medieval Archaeology》2013,47(2):147-169
SUMMARY: The 16th-century Spanish conquest of Colombia brought new technologies that altered and interacted with native metalworking traditions. In the colonial village of Santa Cruz de Mompox, renowned because of its goldsmithing tradition, indigenous groups and Spaniards experienced momentous encounters of individuals, metallurgical technologies and knowledge. However, little is known concerning colonial metallurgy, its continuities and changes with regards to the pre-Columbian period. Here we present the analytical characterization of five crucibles recovered in Mompox, together with discussion of relevant archival evidence. We find evidence for the local manufacture of crucibles as well as for the melting of unrefined gold dust, tumbaga (gold-copper-silver alloys) and silver. These metallurgical practices illustrate some likely illegal activities, continuities with pre-Columbian traditions in the use of tumbagas, and the Spanish-led introduction of silver in northern Colombia. It is argued that metallurgical remains can be informative of wider social and economic negotiations that engaged indigenous peoples, mestizos and Spaniards, which are critical to understand the configuration of the colonial reality. 相似文献
1