Geology Commons^™

Mgrre_Pureoilscouttickets_Miller, Martin_2_21127128770000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Miller, Martin H_1_21127127420000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Neumann, Oscar P._1_21127119360000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Kyncl, Jos & Marie_1_21127118890000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

The Birth And Incision History Of The San Juan River In The Past 5 Ma, Micael T. Albonico

Earth and Planetary Sciences ETDs

This study addresses the evolution of the San Juan River system and its confluence with the Colorado River, ~ 100 km above the regionally important Lees Ferry knickzone. The San Juan River is a 600-km-long continental-scale tributary of the Colorado River. From its headwaters in the San Juan Mountains in Colorado, the San Juan River flows across the Colorado Plateau, and into the Colorado River upstream of Grand Canyon. Published apatite fission track and apatite (U-Th)/He thermochronologic data show that rocks in Marble Canyon, as well as in middle and upper reaches of the San Juan River, were >75 °C …

Mgrre_Pureoilscouttickets_Newman, Lena C._1_21127113670000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Vander Leest, Joe_1_21127112940000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Vaughn, Thad_1_21127111290000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Soil Accretion And Mass Accumulation In A Scrub And Fringe Mangrove Forest In Biscayne Bay, Florida, Jessica A. Jacobs

USF Tampa Graduate Theses and Dissertations

This study estimated soil accretion and mass (organic carbon (OC), total nitrogen (TN), and total soil) accumulation in a scrub and fringe mangrove forest in Biscayne Bay, FL, to assess how forests of different morphologies (scrub vs. fringe) have kept pace with recently accelerating rates of sea-level rise. Accretion rates (AR) were estimated using the Constant Initial Concentration (CIC) model of lead-210 deposition and it was determined that the scrub forest has accreted at 1.3 ± 0.2 mm yr-1 over 75 years and the fringe forest at 2.8 ± 0.4 mm yr-1 over 92 years. The fringe forest estimate met …

Mgrre_Pureoilscouttickets_Bowen, George W._1_21127120500000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Spatial Variations Of Stochastic Noise Properties In Gps Time Series, Xiaoxing He, Michael Simon Bos, Jean-Philippe Montillet, Rui Fernandes, Timothy I. Melbourne, Weiping Jiang, Wudong Li

Geological Sciences Faculty Scholarship

The noise in position time series of 568 GPS (Global Position System) stations across North America with an observation span of ten years has been investigated using solutions from two processing centers, namely, the Pacific Northwest Geodetic Array (PANGA) and New Mexico Tech (NMT). It is well known that in the frequency domain, the noise exhibits a power-law behavior with a spectral index of around −1. By fitting various noise models to the observations and selecting the most likely one, we demonstrate that the spectral index in some regions flattens to zero at long periods while in other regions it …

Interspecific And Local Variation In Tern Chick Diets Across Nesting Colonies In The Gulf Of Maine, Keenan Yakola, Adrian Jordaan, Stephen Kress, Paula Shannon, Michelle D. Staudinger

United States Geological Survey: Staff Publications

The Gulf of Maine, USA is home to four colonial co-nesting tern species: Least Tern (Sternula antillarum), Common Tern (Sterna hirundo), Arctic Tern (Sterna paradisaea), and the federally endangered Roseate Tern (Sterna dougallii). Over three decades of visual observations of chick provisioning were compiled for a comparative dietary study in the region, including the first detailed descriptions of Least and Roseate Tern chick diets. Three prey groups comprised the majority of chick diets among tern species between 1986–2017: hake (Urophycis spp. or Enchelyopus cimbrius) 28–37% frequency of occurrence (FO), sand lance …

Revisiting Darwin’S Little Pond As A Method To Liberate Phosphorus From Apatite Under Prebiotic Hadean Earth Conditions, Jennifer Lago

USF Tampa Graduate Theses and Dissertations

Phosphorus is an essential element for life as we know it. Phosphorus, mainly in the form of phosphate, is key to biologic functions such as genetic material, energy production, and cellular framework. As phosphorus is key to so many important biological functions it is of no wonder the question of how phosphorus was incorporated into life initially is a fundamental question in how life began.

During this time a prebiotic phosphorus source would need to have originated in rock, as phosphorus has not volatile source on Earth. The most prevalent mineral source on a prebiotic Earth would likely have been …

Mgrre_Pureoilscouttickets_State Of Michigan_1_21127099460000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Biegalle, Louis Et Ux_1_21127097150000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Benjamin, Emma & Michigan Trust Company_1_21127091500000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Swett, Edward R._1_21127083310000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Branstrom, H._1_21127081840000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Mgrre_Pureoilscouttickets_Lacomte, A._1_21127077420000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Exposure Of Predatory And Scavenging Birds To Anticoagulant Rodenticides In France: Exploration Of Data From French Surveillance Programs, Meg-Anne Moriceau, Sébastien Lefebvre, Isabelle Fourel, Etienne Benoit, Florence Buronfosse-Roque, Pascal Orabi, Barnett A. Rattner, Virginie Lattard

United States Geological Survey: Staff Publications

Wild raptors are widely used to assess exposure to different environmental contaminants, including anticoagulant rodenticides (ARs). ARs are used on a global scale for rodent control, and act by disruption of the vitamin K cycle that results in haemorrhage usually accompanied by death within days. Some ARs are highly persistent and bioaccumulative, which can cause significant exposure of non-target species.We characterized AR exposure in a heterogeneous sample of dead raptors collected over 12 years (2008–2019) in south-eastern France. Residue analysis of 156 liver samples through LC-MS/MS revealed that 50% (78/156) were positive for ARs, with 13.5% (21/156) having summed second-generation …