crater, Mars. A. Udry1, V. Sautter2, A. Cousin2, R. C. Wiens3, O. Forni2, K. Benzerara4, O. Beyssac5, M. Nachon6, G. Dromart7, C. Quantin7, L. Mandon8, E. Clavé9, P. Pinet2, A. Ollila3, T. Bosak10, N. Mangold11, E. Dehouck7, J. Johnson12, M. Schmidt13, B. Horgan14, T. Gabriel15, S. McLennan16, S. Maurice2, J.I. Simon17, C. D. K. Herd18, J. M. Madiaraga19. 1University of Nevada Las Vegas, Las Vegas, NV (arya.udry@unlv.edu), 2IRAP, Toulouse, France, 3LANL, Los Alamos, NM; 4CNRS, Paris, France, 5IMPMC, Paris, France, 6Texas A&M, TX, 7ENS Lyon, France; 8CNRS, Paris, 9CNRS, Bordeaux, France, 10MIT, Cambridge, MA, 11CNRS, Univ. de Nantes, France, 12JHU/APL, 13Brock Univ., Canada, 14Purdue University, IN, 15USGS, Flagstaff, AZ, 16Stony Brook Univ., NY, 17ARES, NASA JSC, TX, 18Univ. of Alberta, Canada, 19University of the Basque Country, Spain.

A Mars 2020
 Perseverance
 SuperCam Perspective on the Igneous Nature of the Máaz formation at Jezero crater and link with Séítah, Mars

The first samples collected by the Mars 2020 mission represent units exposed on the Jezero Crater floor, from the potentially oldest Séítah formation outcrops to the potentially youngest rocks of the heavily cratered Máaz formation. Surface investigations reveal landscape‐to‐microscopic textural, mineralogical, and geochemical evidence for igneous lithologies, some possibly emplaced as lava flows. The samples contain major rock‐forming minerals such as pyroxene, olivine, and feldspar, accessory minerals including oxides and phosphates, and evidence for various degrees of aqueous activity in the form of water‐soluble salt, carbonate, sulfate, iron oxide, and iron silicate minerals. Following sample return, the compositions and ages of these variably altered igneous rocks are expected to reveal the geophysical and geochemical nature of the planet's interior at the time of emplacement, characterize martian magmatism, and place timing constraints on geologic processes, both in Jezero Crater and more widely on Mars. Petrographic observations and geochemical analyses, coupled with geochronology of secondary minerals, can also reveal the timing of aqueous activity as well as constrain the chemical and physical conditions of the environments in which these minerals precipitated, and the nature and composition of organic compounds preserved in association with these phases. Returned samples from these units will help constrain the crater chronology of Mars and the global evolution of the planet's interior, for understanding the processes that formed Jezero Crater floor units, and for constraining the style and duration of aqueous activity in Jezero Crater, past habitability, and cycling of organic elements in Jezero Crater.

Samples Collected From the Floor of Jezero Crater With the Mars 2020 Perseverance Rover

(elise.clave@u-bordeaux.fr), K. Benzerara, P. Beck, P.-Y. Meslin, O. Beyssac, O. Forni, A. Cousin, T. Bosak, B. Bousquet, K. Castro, S. Clegg, E. Cloutis, O. Gasnault, G. Lopez-Reyes, J.M. Madriaga, L. Mandon, S. Maurice, S. Le Mouélic, A. Ollila, C. Pilorget, P. Pinet, C. Quantin-Nataf, S. Schröder, R.C. Wiens and the SuperCam Team. CELIA, Bordeaux, IMPMC, Paris, IPAG, Grenoble, IRAP, Toulouse, MIT-EAPS, Cambridge, University of the Basque Country, LANL, Los Alamos, University of Winnipeg, Canada, Universidad de Valladolid, LESIA, Meudon, LPG, Nantes, IAS, Orsay, LGL-TPE, Lyon, DLR-OS, Berlin

Carbonate detection with supercam in the jezero crater, mars.

We explore the quantum nature of black holes by introducing an eﬀective framework that takes into account deviations from the classical results. The approach is based on introducing quantum corrections to the classical Schwarzschild geometry in a way that is consistent with the physical scales of the black hole and its classical symmetries. This is achieved by organizing the quantum corrections in inverse powers of a physical distance. By solving the system in a self-consistent way we show that the derived physical quantities, such as event horizons, temperature and entropy can be expressed in a well deﬁned expansion in the inverse powers of the black hole mass. The approach captures the general form of the quantum corrections to black hole physics without requiring to commit to a speciﬁc model of quantum gravity.

The Eﬀective Theory of Quantum Black Holes

Laser powder bed fusion is an additive manufacturing technology that enables manufacturing complex structures with the capability of design freedom. However, owing to the essential nature of the process, it generally requires support structures. Correct selection of support structures allows a part to be manufactured successfully by avoiding inefficient heat dissipation, process-based failures, redundant material usage and labour-intensive post-processes. For this purpose, alternative support structures to commercial solutions may be needed for manufacturing of the parts. In this study, different lattice-type support structures with nearly same density are investigated in terms of process simulation, manufacturing and inspection. Process simulation results indicate that the simulated lattice-type support structures exhibit similar trend with the actual ones, although up to 35% discrepancy was seen between displacement values which is a result of modelling thin and complex lattice structures. The results from manufacturing show that the lattice-type support structures present more stability than the perforated block-type support structure, although they have the same density. Among the lattice-type support structures, FCC had the minimum deformation in both simulation and manufacturing results. Besides, inspection results show that the manufactured lattice structures have accurate geometrical dimensions which is consistent with its engineering design models.

Investigation of process simulation and additive manufacturability of lattice-type support structures

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

S.

Author Tools

Chat about Author

Papers

Carbonate detection with supercam in the jezero crater, mars.

The Eﬀective Theory of Quantum Black Holes

Investigation of process simulation and additive manufacturability of lattice-type support structures